With the way secondary stats and such work you are pretty much ignoring gear anyways

Sure, there are some BiS trinkets in places but Titanforge and Warforged things from raids generally eclipse anything in the dungeons besides the highest of warforges. Even a schlep like myself who is 50% casual doesn't get drops in M+ anymore.
I don't find EoA to be that bad as a tank or deeps. Your tank definitely needs to know how to pull the place though. There is a skill factor on that dungeon for sure. HoV and BRH are terrible not for skill reasons but because they just plain suck.
@Noodle - Shouldn't you complete regular mythic raids before you worry about M+ raids?