You must have not healed in MoP remix, because the numbers of tanks falling over is CRAZY, i have had 3 dungeons so far (dungeon spammed to 30 in MoP remix) in which the tank didnt die. I even saw a lv 12 dk getting outhealed by a ret pally (the ret was healing themselves not the DK). The tanks are dying with centruion ward, rejuv, wildgrowth, life bloom, regrowth and regrowth spam (till I needed to reapply my hots again)
Im all for challenges, but at the same point know that a majority of players are unwilling or dont care for most of the challenges in the game. We already have a challenge mode in retail, its called mythic plus or mythic raid. Is there a need to make pedantic content hard at the cost of many subscribers? Mesa thinks no.