So best guild only got to kill Garr. So that leaves 6 bosses not tested in Molten core.
Onyxia had problem with fear and lava.
Lucifron had problem with adds not spawning after a wipe.
Garr had problem with his adds and explosions.
So 3 bosses had bugs that i know off. I bet the 6 bosses left in Molten core also got bugs that need to be spottet.
So mabe get a close beta test for guilds like exiled and blacklisted? Mabe they can come together and get a proper 40 man raid and get the whole thing tested with T3 gear.
I would hate for the most serious guilds get into MC in the start to find out they can only do like 4 bosses because the other ones did not get tested and now have bugs.