I would like to understand the factual basis on which people conclude (assume?) the Molly has "NO (or very little)" physical talent. Have you seen her play enough to know that?
Even though they play different positions, I see a significant difference between her and either Natalie or Kyla. Both Nat and Kyla frequently show clumsiness, inability to hang on to balls delivered cleanly to them, missing bunny shots, etc. I have not seen that in Molly's play.
I agree that Molly does not show (and does not have) the extraordinary physical talent of Crystal. She won't make amazing drives, uncanny bounce passes through traffic, or spectacular bank shots. That is really the big difference between Crystal and Molly -- they both make mental mistakes (lazy passes or occasional missed defensive assignments), but Crystal compensates for it with sensational plays that Molly is never going to make. I assume that is why Crystal gets more minutes even while she taxes Geno's patience.
But UConn has a substantial history of guards who were not Top 100 coming out of high school who played very productively -- Jen Rizzotti, Carla Berube, Maria Conlon, Ashley Valley, Mel Thomas (probably an incomplete list). I know that the last three got very few minutes in their freshman years, but became trusted starters by their senior year. (I wasn't around to observe Jen's or Carla's freshman year). I don't see why Molly can't fit into that tradition, and eventually become equally productive and equally trusted. It sounds to me from Geno's comments that her limitations right now are much more mental than physical -- the college game hasn't slowed down for her yet, so she can't play instinctively as she needs to do. (It hasn't slowed down for Crystal either, but she can play instinctively and beat most opponents based on sheer athleticism.)