Why the hate with endgame fights?

[Nedkel]

Because some dungeons and activities are not balanced like at all and you could even find dungeons on low lvls that are hard to do and understand like the vault, the aery or the keeper of the lake (i swear to god that one).
The inconsistency in balance infuriates me as a tank (especially certain high lvl useful abilities locked, which you know they would be usefull there and here but you cant use it ending up performing badly), so the longer you go the longer it makes you thinking the next dungeon you will join is going to be somewhat "special" in killing and wiping your team for the reason you dont know yet.

The instant dead mechanics are lazy and idiotic, thats not making it difficult for the players who know how to make it, but makes it impossible to do for the ones who do it for the first time, and here is the place where the hate is. Are there really no other ways to do activities more interesting and diverse than dropping here and there field mines, which kills everybody flat in instant?
Terrible design.