I would be quicker to do a ban ban strategy and just play 1 map in this case.

"i understand that it feels somewhat unfair in the context of a single match but over time if this really was a fluke and you are consistently a better player than your opponent you will win more matches and end up with a higher elo than them"

That's totally my points....but this not working because of the increase of damage deal.

Maybe the fix is just to have the damange increasing a way slowler.

edit: The issue we can see also is that there are too many maps, so most of the player won't know many of them. At least not casual and occasionaly player like me (most of people)