Hi everyone.
As you may have noticed (and as the title says), Blizzard's raid bosses usually award just an achievement each. You can see it from SoO where, apart from Garrosh and the wings completion achievement, there's just an achievement per boss that isn't related to heroic mode.
The same happened in DS and ICC, where for every bosses encounter (but the last), there was just an achievement for each that made you do different things other than playing the fight like you were supposed to play it.
I've never completed Ulduar while it was current content, but... why did we get away from that achievements model?
Every bosses in there has at least 3 achievements on his own, and that is per difficulty (10/25). Except maybe for Razorscale.
And then there was Yogg-saron, with 8 achievements per difficulty.
Most of those achievements weren't needed for the meta. They just added something to do in that place, even when it was outdated content. As of today, out of 12 bosses, there are 12 achievements, and they are all part of a meta.
Would you like to see Ulduar's achievements model make a return?
EDIT: pool added.