i think its a problem that will go away with time.
while everyone is unranked you'll be playing new and experienced people, after your 10 placement matches the matches should get better.
The new people will play together and the experienced people will play together.
Agreed! The players abilities will level out, and similar experienced players will get together. Although, I have played with expert players in other games, (and they knew how bad I was), but taught me a lot about playing. IF a good team has some patience, they can make all the difference in the world for other players to learn.