One other frustrating thing about this way of handling movement that I noticed yesterday; after combat ends all your charcters converge on the leader. And that can be very frustrating because downed characters still roll death saves after combat. So in the post battle confusion it's easy to suddenly realize that one of your party is dying and not have a character close enough to reach them. Which means spending a finite resource (gold or a revivify scroll) to bring them back.
