I don't see a problem with the restrictions of the max number of games. Ranked play, tournaments plus brawls require more time than most human players have anyway. Who is still playing ranked matches manually these days? And what is the point of a game where bots automatically fight each other for the leader boad spots?

However, I fully agree with you concerning the multi accounting part.

Both, multi accounting and bot use are a huge (and maybe unsolvable?) problem of the game.