Why the hate with endgame fights?

[KaivaC]

This was something I noticed with Stormblood's release with something about nerfing the normal Shinryu, but I've seen some variation of it with Omega Savage as well. This might have existed way back with HW, but I'm not sure because I joined FFXIV sometime in 3.56. I saw it more often lately with our lively discussions about parsing, so now I'm bringing this to the forefront for a discussion.

Let the revels begin.

You could call this one of those 'straw broke the camel's back' discussion, as I'm wondering why there is some hate towards having Savage/Ex fights. Or rather, why some would say that it's either unnecessary, it's too hard (duh, it's Savage/Ex), or that it widens the player skill gap. I realize I'm encompassing a wide range of subjects by making this thread, but I feel like we could get a fairly decent discussion from this (plus, I'm tired of talking about parsing at the moment).

So, I'll start this with a question: what is the issue with endgame fights? Why are some individuals opposed to them?