JBJ uses kicks more consistently than almost anyone at LHW. While he isn't throwing KO headkicks or punshing leg kicks a la Shogun, he uses them to keep distance. Because of this JBJ will also have a reach advantage in kicks as well. When he kicks he does it from further away because his end goal is to create distance rather than punish and hurt.
There is zero evidence that Bones leg reach is any longer then Gustafs. If Bones is close enough to kick Gus, then hes close enough to get kicked.