What's up with the lack of communication in ranked?

I understand the people in bronze and copper, but we've gotten up into plat 2 and less and less people even communicate with mics. We have a 3 stack which helps but it seemed that gold and silver lobbies actually cared and tried to make callouts, but in plat it is getting so few and far in-between. We played in the last two seasons of ranked 1.0 and people seemed to take it a lot more serious and found lots of people to queue up with but now? Nothing.