Currently I think Vindicta's skill floor and ceiling are both quite high, which is why she is the poorest performing hero in the game. i.e. tt is possible to dominate with her, but difficult.
It seems as the MMR is a work in progress there is a pretty wide range in matchmaking which makes sense from a development perspective.
The value the devs get out of this big beta is the huge firehose of data from matches and the more matches the more data. So it's more important for games to...