This is a huge case of people essentially complaining about getting exactly what they asked for.

People complained about EW dungeons and casual content being too easy, so they amped up the difficulty. Now people are complaining about the game being too hard. Healers are complaining that tank self-sustain is too strong in casual content, making them unnecessary. Now we have casual content that actually makes tanks require their healers to be on their A-Game.

Which brings me to the point of the fact that most people making these complaints don't even have an A-Game to begin with. Yes, there are some valid criticisms and complaints going on with everything but if you've been playing this game across multiple expansions and reached level 100 without buying skip potions, then why should things continue to be dumbed down for you? You've clearly put the time and effort in to invest into this game, and the game and its creators will rightly assume that if you put that much time and energy into the game, then you likely have an understanding of the game's fundamental systems and don't need to be coddled. It's time to take the training wheels off.

After 300+ hours of playtime, I cannot think of reasons beyond physical or mental disability to explain why you are still struggling with mechanics that are often the same thing we've seen a million times already in shiny new wrapping paper. And even then, I've seen someone IN THIS THREAD state that they have physical disabilities and still enjoy the rise in difficulty.
Most of these complaints will end up being moot anyways when we increase gear level to points that trivialize the difficulty as we grow in power.

It hasn't even been a full week yet with the new raids and people are already complaining about how hard it is. And all I can think about in regards to this whole situation is how we wanted fights to actually give us a challenge, and now that we got that challenge, people are complaining. And the only thing I can see coming from this is Yoshi-P making the same pained face he made when we asked for housing on the moon RIGHT when the devs finished housing in Ishgard.

All the devs are gonna take away from this is that we'll never be happy even when they give us what we ask for.

So maybe stop complaining, and follow the wise words of an old sage;

Git Gud.