It seems you're looking for a different game from a different age, or perhaps just not yet letting sink in the variety of difficulty levels that exist within this game. Maybe go try Wildstar - they've dedicated themselves to making an MMO that's "old school" in having difficult dungeons, required grouping, etc....oh wait, that's right, they had to shut down because their playerbase was so small it couldn't sustain itself. The simple reality is that today's primary MMO demographic is not looking for the base-level of the game to be a wipe-fest. There are multiple levels of difficulty, even in a non-raid-centric game like FFXIV, above the base level that have the "danger" you seem to desire. I encourage you to try it out if you haven't yet. But your solution is to risk turning off a much larger number of people by making the base-game cater to what you want, instead of doing the content already designed for it.
I'll give another recent example. Destiny 2 seems to have focused on its "elite" gamers and streamers in the current expansion. Basic patrol zones have damage sponges, enemies that will one-shot you from far away, lost sectors with tons of adds, and even the first "step up" in difficulty forces your ilvl (equivalent) to be weaker than your opponents (whereas in the past this only happened at a higher difficulty step). The end result? The company just laid off a significant portion of its staff because so many players have left and pre-orders for the next expansion came in far below expectations.
Why do I say this? In another post, you mention that some people here are quitting. But guess what - many more are staying and joining. Make the base game at the difficulty you want, and many more would quit (and not be replaced).
Edit:
I think we might be on to something here. The impression I'm getting is that you're someone who feels that unless you needed to be at the top of your game the entire fight, then everything was meaningless and unenjoyable. If that's accurate, you're certainly welcome to feel that way. But I'd have to say that's probably very different than most people's experience. Take me, for example. As long as I'm doing the dance and engaging in the fight, I have fun. I still dodge the mechanics even though technically I could just sit there and absorb a few, because I'm just having fun playing the game.Now lets say you go into dead ends just move away from the big telegraphed AOEs but you don't attack and the trusts kill the boss. Did you feel like you were needed?