we are focusing too much on preflop here.

Postflop is where the money is made and by not 3betting pre we can make more money than we can if we 3bet pre in given situation.

Obviously there are some situations where 3betting QQ pre is good/more +EV, whatever. But on the whole I think you can make more money postflop if you flat it.

But what do me and stacks know, right?