This.
When people say "some people are going to complain about anything" or "some people refuse to be pleased", this is the sort of thing they're talking about.
SCH looked boring in the Media Tour but Expedience turned out to be hugely successful and enjoyed by people, and SCH is still the meta pick and has been for all of EW. There's an old saying:
"Don't judge a book by its cover."
At least wait until you see what the mechanics are.
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As for the Job itself:
As a person who loves Rogue/Thief archetypes and dislikes Ninja, I'm happy we finally have a Rogue/Thief JOB (not relegated to a class you just upgrade out of). Though I kinda dislike the whole "will be highly technical" thing. I thought that's what NIN was? Having a second Scouting Job that is also highly technical makes little sense to me...but whatever.
EDIT:
Honestly, there's a part of me thinking blue thing is "Presence of Mind" and dualsword is "Cleric Stance".
...not a perfect analogy but here's my thought:
1-2-3-4(?) combo builds resources. The attacks are swift, maybe a speed buff (either like NIN or baseline like MNK) for a faster GCD. MAYBE this is the only stance you can use oGCD weaves in, etc. "Umbral Ice" phase.
Dualsword is a stance, not an action that changes you for a short time. You can swap in and out of it (most) any time you wish. But swapping into it when you haven't built up resources from dual wield phase means you won't be able to do as much damage. You need those resources built up to access bigger hits. In this stance, you have a different combo, and the attacks and attack speed are slower. "Astral Fire" phase.
The gameplay here would be to go into dual wield phase to build resources, maybe throw out some oGCDs, etc. You then shift into dualsword stance to lay on the hurt with some slower but harder hitting attacks. Then you hit the obligatory 2 min burst phase where you hit Presence of Trance, turn blue, and throw out several attacks, oGCD dump, and finally FF13 Lightning's "Army of One" to finish the job.
Rinse and repeat.
Could be wrong - probably am - but I like the idea of dualsword being a stance and the "highly technical" aspect of the Job being the player knowing when to enter it (sorta like RDM knowing when to melee phase) as opposed to using it like clockwork every 2 min. The Aura/Trance being the 2 min thing and how you work your stance shifts to keep that aligned/not drift out of party buffs would give the Job a more technical feel, as would the cadence shifts from "fast attacks pressuring the enemy" (shorter GCD?) dual wielding vs the "slower, strong attacks" of dualssowrd. Would give it a more BLM feel.
Granted, I hate BLM, but tons of people love it, so a Melee that works that way could be quite popular with the "high skill ceiling" crowd.
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I think a lot of people are judging this one far too early and may have an "Expedience-moment" in the future...
...but maybe not, who knows?
I absolutely do think people are being WAY too quick to judgement on this one, though. We've seen all of 7 abilities and the Job's artifact gear and people are already down on it. I guess to each their own but...good gosh that seems like a rush (or preconceived) judgement.
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For my part, I liked it way more than RPR. I've always wanted Rogue/Thief to be an actual Job in FFXIV (instead of a pre-class for Ninja, an archetype I like far less), and this is it. Combined with the fact I hate edgy/demon possession/necromancer/deal with the devil kinds of things (RPR) and hated that Job reveal. I think RPR looking good to people and "VIP?" looking bad is more a matter of taste and/or current levels of satisfaction/dissatisfaction with the game, but subjectively, I hated RPR's reveal and am marginally positive on this one.
I doubt I will play the Job/like the Job since I think it's going to be more technical like BLM, which is something I dislike, but in terms of it being a good addition to the game, I'm more than willing to wait until I've seen more than a 40 second trailer to make that judgement.