If we had one more good guard on the roster I wouldn't expect Aubrey to play much at the 3 either. In that case I think she could be a situational substitute for defense or rebounding. What I think some are missing is that we likely will have to play Aubrey there out of necessity.
Right now, a very tight rotation of four players for 3 positions will consume most of the minutes at 1-3. I say most, because it is very hard to manage a 4 player rotation for 3 positions. Usually some minimal use like 5 minutes a game is needed from a fifth player. With that assumption, even if our four guards never miss even one game during the whole season, someone who is not a perimeter player will have to play a limited number of minutes at the 3.
Maybe somebody else is better at that role, but your other choices are all bigs, Ayanna, Aaliyah, Amari etc. So in my opinion, one of them plays a few minutes there whether it is a good fit, or strategic or not, we have no choice. That is the most optimistic scenario because it assumes that the four guards play all of 150 or more player games between them.
I don't know what the over and under would be on how many games those four guards would miss during the season, but I would estimate maybe in the 5-10 range. Of course any serious injury to any of them would result in blowing by that figure. My point is that whenever one of those guards is out, the use of a big to play guard goes from minimal to major. That big then becomes the fourth guard, and the substitute for all three starters at 1-3. Now that big would be used mostly at the 3, but you could easily be talking about Aubrey or some other big playing 20 minutes a game out of position. Since you are back to a 4 player rotation for 3 positions, you also probably need to bring in another big on the wing for a small 5 minutes a game or so, maybe Ayanna.
Minimal use of Aubrey at the 3 if we don't have additional guard injuries, is baked into the cake, not by choice but by necessity, unless you think another big would be better at the wing. Anything approaching normal, not good luck on further injuries, would mean Aubrey (or another big) would have to play a major portion of a half dozen or so games on the wing.
The bottom line is we have no insurance or cushion anymore at 1-3. It is highly likely we need to play a big at the wing for more than minimal minutes for multiple games this season. Aubrey is mentioned most often, despite her perimeter issues, because she seems to be the best available option when you have to use a big at the 3. I wouldn't be shocked if Ayanna showed enough perimeter skills to challenge Aubrey for that role, but realistically you are looking at those two.