I think that concern is an often stated, but overblown concern.
Bird couldn't jump, and had a wind up release.
Hulls was short and couldn't jump a lick. Roth and Zeisloft got their shots off when on the floor. Yogi could jump, but he was 4' 8". Lol
There's time to get a shot off. Very few shots are highly contested where the ability to jump high in the shot determines if you get it off or not.