Don't repeat the past a third time, Yoshida.

[Lumadurin]

was the fact they changed Shake it Off to a Raid Cooldown that provided shields for some odd reason.

Because a self-Esuna was entirely worthless in all forms of content as WAR no longer suffered from Pacification after their burst window, and like 98% of debuffs nowadays are incurable or must be cured through mechanics (getting hit, standing in certain places, healing to full, etc.); with the 2% that are curable being no more than a minor inconvenience at most. It was a flagrant exmaple of an egregious disconnect between class design and gameplay design.
A barrier was the only thing it could be changed to that still made sense thematically. It was either that or creating a completely new ability from scratch.

[Canadane]

Because a self-Esuna was entirely worthless in all forms of content

You can tell they made content around it, though. Shinryu, Exdeath, etc. They had some raid-wide debuffs going on there for a bit, and the easiest way to remove them was either going to be Selene or a Warrior.

[Chrono_Rising]

A barrier was the only thing it could be changed to that still made sense thematically. It was either that or creating a completely new ability from scratch.

From a thematic stand point making it into something more like a party wide ToB would have been more fitting for warrior, and the game has something like this in one of the bard troubador's. The major issue with adding a shield is that it can be used for limit break charging which solidified Warrior's place in the speed run meta. That and reprisal + free shield for nearly all raid wide aoe's is very helpful for prog.

[HyperiusUltima]

From a thematic stand point making it into something more like a party wide ToB would have been more fitting for warrior, and the game has something like this in one of the bard troubador's. The major issue with adding a shield is that it can be used for limit break charging which solidified Warrior's place in the speed run meta. That and reprisal + free shield for nearly all raid wide aoe's is very helpful for prog.

This I would've liked better at the time. Party-wide Thrill would be nice, but wouldn't be too powerful so as to make Shields a huge thing. Though...I still think just giving them party-wide for just about anything just solidified them regardless. My initial thought was giving WAR an ability that gave it Free Beast Abilities for a set amount of time at the time when we had to line up IR with the rest of our rotation...but they baked it into IR regardless. It still would've thrown DRK out the window given they're a rather selfish Tank that only has a single on-demand Shield as utility as well as the rest of their kit not lining up very nicely for groups.

[Lyth]

...

Most jobs have at least a few abilities which are incredibly situational in PvE. Why does WHM still have Repose? What is BLM supposed to do with Freeze? The original version of Shake it Off had more widespread application than either of these actions.

To make matters worse, at the launch of Stormblood, between the knockback negation effect of Inner Release (on a 120s recast) and the status effect removal of the original Shake it Off (on a 60s recast), you had a vastly superior form of Tempered Will (bind/heavy removal + knockback prevention, on a 180s recast). Did PLD players complain about Tempered Will being completely outdone by these two new actions?

There's this bizarre mindset amongst a small, but extremely vocal minority of the playerbase. If an ability isn't usable in every circumstance with twelve different functions, then it's worthless. If WAR doesn't have an answer to every single situation that is at least on par with the second strongest tank, it's an unfair disadvantage. No other part of the playerbase has this pathological mindset.

And the worst thing is that the devs are listening to them. Never, in the history of this game, has anyone gone back to the devs with a newly designed action, and demanded a refund, simply because it wasn't good enough to be a WAR ability.

Do you know what the devs should have done? Change Shake it Off, into a completely new action, as they did. And then re-implement a 10 second pacification debuff at the end of IR that can only be cleansed by the player themselves. Call it "Shake this Off," and add in the tagline "Be careful for what you wish for."

[Launched]

Most jobs have at least a few abilities which are incredibly situational in PvE. Why does WHM still have Repose? What is BLM supposed to do with Freeze? The original version of Shake it Off had more widespread application than either of these actions.

Old skills are a pretty bad excuse to leave WAR with one that had almost no use. Every other job got 5 good skills/traits at 62+, except WHM with its Lily traits, and those have had plenty of complaints. Why should WAR players be fine with getting one less skill/trait than 14 other jobs? I've played PLD for most of this expansion and there's really nowhere I've thought "I could really use 4.0 Shake it Off now".

[shao32]

Old skills are a pretty bad excuse to leave WAR with one that had almost no use. Every other job got 5 good skills/traits at 62+, except WHM with its Lily traits, and those have had plenty of complaints. Why should WAR players be fine with getting one less skill/trait than 14 other jobs? I've played PLD for most of this expansion and there's really nowhere I've thought "I could really use 4.0 Shake it Off now".

Oh yeah how those selfish ppl dare to think they skills that have being useless since ARR and HW have more priority over a WAR skill that is just situational at best, such injustice, thank God SE know what they do and make shake it off the stronger of tank shields.
/sarcasm.