Random thought on this: disregarding the dps loss, what if everyone in the raid wears the tank cloak? you can ignore quite some mechanics, or at least do so while learning a fight.
Getting hit by Overcharge on Lei Shen? No problem.
Forgot to stop casting at Dark Animus' Jolt? No problem.
Fucked up on the Jin'rokh's ionization? We can deal with that
Dire call on Horridon when the raid wasn't high enough? No problem
Move away from Iron Qon's sword (or whatever he throws) ... aint got no time for that shit.
Ofcourse it doesnt work on raidwide AoE like lightning storm at Jin'rokh and Quills on Ji-Kun, and your dps is gimped quite a lot.. but still i think they would be pretty usefull when learning new encounters?
I am so tired of seeing terrible people, being admired, for being terrible people.
The whole raid wearing the dodge/parry cloak is a massive dps hit, especially if you aren't a strength user. Think Hour of Twilight type mechanics it works well for, along with impales. Long, far enough apart, big hits. Outside of that tanks will probably have to lose some survivability now that it makes the dps one outright better on certain types of fights due to stats.
I am really quite shocked that slacked THIS much, it's a new low for them but I guess the slacking on legendary implementation was clear from the start of the expansion I was just kidding myself they would manage it properly at the end. Oh well.