Rofl, yeah my thoughts exactly.
If they were to add more levels they should really come up with a better system where you gain levels MUUUUCH more often but with more minimal benefit. I would rather gain a level on every game and get +3% faster something something than play 50 games and get that +20%. Doesnt feel too much of a grind then.
Also better leveling requirements would be nice too, like achievements instead of plain damage.