This will encourage probably a bunch of players (like me) just to quit out of matches to get the right one. Yet there’s also not even an increased chance (it seems like) that you get a new map. If it were in Casual I wouldn’t complain but Ranked is not really a good idea in my opinion.
I know you get “banned” and have to do the community service thingy but it doesn’t really sound like a big pain to me to do that. Rather that than playing on a map that doesn’t grant you the achievement anyways.