What we need is smarter players that know how to think on their characters strengths. sometimes you see a player really be selective on the stage select, but sometimes you see some one fumble their stage choice. like a jax selecting pit against cage thinking its in his favour.
It's been a really interesting mechanic thus far because it can show which players are more in tune with the flow of any possible match up.
It's gotta stay! You never no what corner opportunities you could be missing if you mindlessly select roof top because the numbers add up when it might not even be helpful to the players style.
I see no real reason to ban them just because they are the biggest and smallest. After u ban it there will still be a smallest stage threat