"One player doesn't meet the requirement(s)"
I've gone through so many Chimera runs with the FC where we cannot queue up because one of the new players do not meet the iLevel requirement or a veteran who hasn't revisited Chimera cave after patch 2.16 to have it unlocked in the DF.
The problem is, the game has the restrictions enforced but no meaningful error message to inform the group on who doesn't meet what requirement. All we get is a message a long the line of "Oops we can't queue your group for some mysterious reason. Please investigate and try again!!!!"
Then there are trolls who would join a PF group then go naked and prevent the group from ever queuing .
More over, if you don't enforce the party role composition (2 tanks 2 healers and 4 DPS) with a full party why enforce the iLevel requirement?