this would push up stronger guys ... you're lucky if you're a 1Mill Goku with a fully charged KHH and you see a Gohan SSJ (2Mill) who just charged his KHH ... then you shoot at him ... he tries to prevent and shoots back ... because yours is fully charged, it's stronger for the first few seconds ... this should be enough to win the PS
but if the Gohan would get pushed back, then he would win this ps easily ...
this would be a nice visual effect ... but I don't think it should be in ...
btw: most PS' didn't push anybody back ...
Goku<>Vegeta: Vegeta lost, got burned and then pushed back (AFTER the PS was over)
Cell<>Gohan: Gohan made a few steps forward, Cell lost and got burned then (without pushin back)
the pushing back you remember, are almost only Blockstruggles ... and this is in ESF