Listen, I agree, all things equal, we'd prefer the taller, longer player.
You know how Boeheim do.
But - all things are not always equal.
You wouldn't take guys like Stevie, Dave Johnson, Moten, Paul Harris, or Mali at the 3, because they are "undersized"?
Please.
And FWIW, as much as I love KrisJo, he was a meh rebounder.
Averaged 5.5, 5.4, and 4.7 his last 3 full seasons here.
Really, the only truly great rebounders I can think of at the 3 for us, are Billy Owens, Carmelo, Paul Harris, and Wes.
It's typically been our 4's and/or 5's who haul down most of the boards.
Or we get help from the guards, like with MCW/Triche/Silent G more recently.