Philly,
IMHO, you don’t need to stress this. I appreciate the analysis here, and I think I even kind of follow it. My takeaway based on reading the thread, and now close to a decade of using gates belts on 3 different bikes is that you can run them way looser than Gate’s spec, which on a practical level reduces the the problem identified by the OP.
__________________
You could fall off a cliff and die.
You could get lost and die.
You could hit a tree and die.
OR YOU COULD STAY HOME AND FALL OFF THE COUCH AND DIE.