Aren't we talking about ways Iowa can achieve more wins? That means increasing the frequency in which Iowa scores more points than its opponents in a game. Which means either increasing scoring or preventing the opposition from scoring as much. Either works. A dynamic guard who can penetrate and also contribute on the ball defense would help in both areas. I'd also say it is the type of player that best represents the gap between Iowa and Big Ten championship teams most years.
So, you give the PG rim buckets for 8-10 pts a game but may at the same time take away pts from a Murray or Sandfort, Dix, etc.. It's a wash to me. Also, Iowa typically makes more free throws a game than its opponents. That means they are forcing the defense, possibly driving and getting fouled.
Now, I will agree there are certain times in a game that a team may need to have a player that can drive and to the rim, like if the shot clock was running out or something, but with Iowa's style, they don't usually get deep and desperate to the end of a shot clock. Is there a reason to recruit a player just so you can get to the rim a couple times a game because the shot clock is running out??
Again, I think an inside presence may be more of a need going forward for this team.