Arena Matchmaking unbalanced

This is so bad matchmaking you can do fighting people that makes new team getting almost 50 points on a win against a team that is getting 10-15 per win.
I don't really care about how you design it but if you fighting people who makes new teams / low rating should fight those people and not by the matchmaking value only. Sometimes you can fight people who is above 300 in matchmaking value and then suddenly fight those that is almost 300 below. Come on this should be atleast balanced on somehow i don't talk about skills here i just wanna get my opinion on how bad this matchmaking system is bad when it comes to arena.