a) Bad teams on LFG. King's Fall essentially requires everyone to do their job if one person messes up then chances are its a wipe. Players on LFG aren't exactly known for patience so they kicked anyone who couldn't handle their job. Plenty of players are either salty about being kicked from a raid or salty from the number of bad teams they've tried to raid with. b) Weapons. King's Fall was the first Raid following Bungie's decision to do away with Elemental primaries. This resulted in a lot of players being disappointed with the loot and raid overall.