Yeah, I mean, honestly, myself included, GMs normally assumed that you moved stuff around in some rational fashion on a map grid/hexes and that the PCs could kinda 'shift around' and we didn't REALLY play as if the PCs in melee were in some sort of weird quantum state. This is probably what everyone THINKS are the actual exact rules, because its how we played, AND Gygax certainly shows us techniques that don't make sense outside of that paradigm in places in the rules (like the thing with grenade-like missiles, if positions in melee aren't certain, why determine the exact landing spot of a grenade!). The real problem is, nobody was allowed to edit Gary's RULES CONTENT, he had editors, but from what I've heard they were told to hands-off on fixing anything like that. I guess the other point of view would be that Gary just intended people to pick and choose and ignore any of the contradictions, though I think its hard to imagine that he wouldn't have wanted to point out which things were distinct options. I favor the theory that he just wasn't concerned and knew people would 'do something' and it would be OK. Gary was nothing if not inconsistent.