Ive played competitive group PVP in mmo's since 2003, across many different games and i, as a veteran totally agree 100% with OP.
To add to the discussion, i also do not believe in a rating system for solo queuing, it IS the reason ranked 4's is practically dead. Casual players do not need a rating system, period. There has never been solo queue in mmo's that i am aware of, why start now? It doesnt work and kills "group" pvp, which in my mind is the whole point of an mmo.