How to unimproved Q times ?

We all aggree that one of the reason many players stopped playing was terrible Q times.

What about Blizzard creating another mode, where players only play agaisnt minions, and the goal would be to push core with minions and camps or bosses , without heroes on enemy team ?

By adding another mode, that would give, again another way of reducing players in Rank mode ! Woudnt that be a nice idea to unimprove Q times ?