Why refusing customization is a fallacy

[Miscreant]

A1 savage is a dps check
A2 savage is a dps check
A3 savage some mechanics still a dps check
A4 savage who knows no one has beaten it. (safe bet is its a dps check)

The current endgame content is definitely a dps check.

That being said, it would be cool to see some customization at least in the way of cosmetic. I would like to be able to add fire or a green poison effect to all my attacks.

Can't argue with A1 being a dps check, I would say A2 is more of a heal and tank check, hitting the required DPS isn't so hard...but have you been into A3? Yeah there are dps checks there, but there are also a hell of a lot of mechanics, more so than I've seen in previous raids.