Teamplay didn't just suddenly become important because of dynamic queue

Teamplay was always important in solo q. If anything dynamic Q only emphasises preplanned cheese plays that partly rely on the other team not expecting them. This is made easier because premades aren't shown to other players in the game. People saying teamplay should be a bigger part of your rank seem to forget that it already was. If riot wanted to emphasise this more they couldve just added in-game voice chat. That would've done the job without compromising the ranking system. Now your rank includes your skill/teamplay along with your friends, which doesn't make it truly your rank anymore.