As far as the why I think you have it pretty much correct it is strictly a matter of the competitive difference -meaning that a weakness, no matter how small, gets magnified the higher you go in competition. Very similar to Moriah Jefferson as a sophomore where teams would play off of her and dare her to beat them from distance. No team executed that strategic successfully in her sophomore but many teams tried it.
This whole discussion is about USA basketball in the post Sue Bird era which also happens to be the post Geno era. It really not much debate if you have Sue Bird you use her because she gives you the best of all possible worlds. But in the search for Sue's replacement I want to make sure we are not locked into finding a "clone" of Sue. I like
@UConnCat explanation of what USA basketball is looking for:
"Can you play effectively in an offense in which you're not dominating the ball and either scoring or assisting?" Even with that being the standard though I think USA basketball could have committed to Courtney, Odyssey, Skylar in 2014 or Kmac by 2016 as a young pipeline guard. As things stand right now USA basketball is looking at integrating possibly 2 guards into the 2020 Olympic team-
BOTH of which might have to start.