I have a set of spd/platform pedals I keep on my CX bike during the offseason when I use it as a commuter/gravel bike. I notice that it feels "short" when I'm riding on the platforms with normal shoes but since I'm just doing short commutes and errands, I don't bother changing saddle height. If I were to ride for an hour or two like that my knees might start squawking, but it's really not an issue to be a mm or two short for a 20 minute ride. YMMV.