I do recognize boss fights have this "do-or-die" mechanics, which may give a boring appeal to the fight once you master ir, or when you don't. However, from my experience this far, I have been in awful/awesome/meh runs, and some of them the group I was in had to improvise either because some party member dced or whatever. Guess what? The group nailed it. I've had tankless fights, healerless fights, and so on. Is the content rough? Is it demanding? Is it too much of the same? My two cents: with proper gear (not over gear) and proper synchrony AND class know-how you can beat this game and enjoy it.