It's probably been repeated a lot, but this is my own feedback.

It is absolutely normal and expected that jobs change and evolve over time naturally. It is also absolutely expected that some people will not like some of those changes, while some will probably like them.

However, whenever you decide to rework a job entirely for X or Y reason, please be considerate into what you're about to do. This is not just about changing a couple of abilities or removing one or two and how they work. This is about reworking the job almost from scratch.

I do not strictly find any issue with in inherently, but if you start turning the job into something entirely different where it could just be a new job, you're essentially deleting a job out of the game because the issues you were trying to fix were deemed too problematic to even try and fix them to begin with. You're alienating all the fans of said job by doing so, essentially telling them that you're going to remove their favorite toys in order to repurpose it entirely for a different audience. And more often than not there is literally very little reasons beyond a developer's whim.

I'll take the two elephants in the room as examples, being summoner and machinist, and another example that may be more controversial to put things into perspective.

Summoner

People always asked to have a job that feels more like an actual summoner of primals, summoning more than a single pitiful egi. I get that you tried to address that and turn it into actually rotating between impressive summons. However, you forgot halfway that a summoner job implies summoning pets that you control. Maybe it didn't in early final fantasy titles sure, but it did in XIV and has since its inception, even if the egis were absolutely underwhelming in that regard.

You also deliberately chose to change the gameplay entirely, removing cast times, removing spell choice and the dot system by replacing it with a linear ranged physical experience. Did you seriously expect the fans of the job would get behind such a drastic change? Or are you just telling them to make way for a new audience of summoner fans, and they can just go play another job, after all there is 19 other ones?

Machinist

The job had jank and issues on some of its mechanics. It was decided at some point that it required a full rework, because you wanted more of edgar from ff6. I can get behind this, like for summoner and the vibe of the job.

Did it warrant a full rework though? You essentially went about to radically remove all the core identity of the job, mainly: the huge skillful burst every minute, the whole ammo and proc system, a meaningful overheat. And to add insult to injury when you did it, you didn't even fix the primary issue that had been plaguing the job for ages, which was latency issues tied to rapid fire (new hypercharge). We had to wait until half endwalker to actually get heat stacks on hypercharge, while the feature has been requested since Stormblood!

What you did was essentially reworking the job without even fixing its underlying issues. You reworked the whole job just on a whim, and alienated all the players that were attached to its gameplay and identity, and again, to add salt on the wound, you decided to add the same expansion a new ranged physical job that was based and procs and rng (less so, but still), which was dancer, while removing all of that from machinist.

Monk

Monk was reworked extensively and I'm sure a lot of people mourn greased lightning stacks. I still do believe the system could have been smoothed out and kept, if just to add speed variations into the rotation, but whatever.

The point is, monk has kept the core fundamentals of its gameplay mechanics. The job still relies on its 6 core weaponskills sorted around its 3 main forms one cycles through. If anything the job got fleshed out on its burst by adding a surprisingly simple yet complex (if one wants to push it further) system of Nadi combinations. And while the job has certainly lost a lot of positionals which a lot of monk fans seemed to appreciate, it still retains a lot of its core identity, and it feels to me more like a job that was adjusted for a new expansion (even if more heavily than usual) than a complete blank slate. I do believe that reworks should be keener into taking that road, if reworks really have to happen for whatever reason.

I'm probably going to make monk enemies out of saying this, and I do agree that not everything was cool, but I think it could be safely argued that it didn't face riots as much as summoner, and for a reason.

tl;dr

Please stop alienating the playerbase enjoying their main favorite jobs that fill a niche in gameplay by destroying them instead of fixing them, and removing their whole identity.

Thank you.