So...
How hard would it be to:
1. Get rid of the ready check? (I really don't care if you are about to loot a delve boss, you queued for Battlegrounds).
2. ZOS programmed us follow this flow path:
level 10 - 49 and solo > queue to level 10-49 solo queue
level 10 - 49 and grouped > queue to level 10-49 group queue
level 50+ and solo > queue to level 50+ solo queue
level 50+ and grouped > queue to level 50 + group queue
4 queues, make the groups, skip the damn ready check and go fight.
I won't even get into the 1v2v4 situations 'cause math is hard for ZOS.
and the leaderboards.... Heh, ZOS would be baffled by any suggestion to fix that.