They do. You can see it in the photo. But it sits below the plastic rails which go all the way to the board. You stand on the rails, not the foam.
I owned Data's that had the Force baseplate. Rode em a whole year. Dampening what complete shit.
Go ahead, drink that kool-aid.
FS: Forum Sauce 142 $200 plus shipping
FS: Flux SE30 $75 plus shipping