I'm taller. I ride a bigger bike.No drop rides would be fine if people on the ride are more or less of a similar ability. If there's a large disparity, then yeah, it can be a problem - it's not fair on the group if someone's too fast, and likewise, it's equally unfair, perhaps even more so, when someone's too slow.
I'm short, ride junior bikes and my little legs are never going to generate the "go" that someone taller and on a bigger bike will... FWIW, my roadie's a 38cm frame!
Yet I'm still a slowcoach