I went with yes - the platforms have made canon appearances, as Goki has pointed out, and it would be a cool homage to the original Diaclone toys.

I did consider the possibility that having the platforms would take away mass/volume from the robots (I've never owned G1 Ironhide or Ratchet, but looking at online pictures, they're barely bigger than Jazz when standing on the platforms), but another idea could be to make the platforms into gun emplacements on treads that Ironhide and Ratchet man from behind, as opposed to platforms they ride.