Isn't Diamond like the top 5% of the player base or something? While Bronze contains the top 30% or something? (I think that about 50% of the player base doesn't play ranked, and Challenger/Masters is like the top 1% if I recall correctly). I doubt Bronze players have too much trouble finding matches even when playing at off peak hours based on the population of the rank. And your logic I assume is because there's more players there, so they should focus on it, but because there's more player, it's not as prevalent as a problem, so... do you really want them fixing more things that aren't broken considering how much everyone has been hating it when they do try to do that?