I am seeing level 3 heros with gear score 1, being matched up with prestige 1 gear score 40 players in dominion.
Also, each hero needs to have its own separate matchmaking influence taking into account individual hero stats(kda, w/l, etc) AND level AND gear score.. playing a new hero, or one that you're not as familiar with SHOULD affect your matched opponents skill level and familiarity with their hero.
It's just not fun to be qued into dominion with a new/unplayed hero and get matched against two prestige 1 40+ gear score Orochi's and just get 2 shotted and stomped.
I don't blame them for spending their time playing the game and progressing. Just don't match me with them when im playing a new hero.
Matchmaking needs some serious looking into IMHO.