If you are referring to direct criticism of JBo, I completely agree. If you are talking about criticism of the program not having a real pt guard, then I don't agree. If the first, that's fair. If the 2nd, then you are really being a part of the "griping" problem yourself.
I don't know how adding CM at point really changes things. His bread and butter is moving to position to receive the ball. Iowa will have two extremely decent passes at guard at that point. In a sense it will be a 2 #2 set. as opposed to Michigan with a 2 #1 set. With CM in the lineup, he has a benefit of having a really good #2 if that #2 is healthy. CM will add nothing to breaking down D from the dribble. No team anywhere will be better at breaking down a D with passing. Both can shoot if open and have quick release. CM has a low release that will create problems for him, even over screens.
Passing into a big has weaknesses that good coaches will exploit and will lead to being destroyed against some really good teams. Cook will look really up and down and it will be mostly on this point. Iowa just doesn't have much in the way of scoring 1 on 1. Many are dependent on waiting for the d to overplay. The shot clock prevents that. This is a team made for a time when there was no shot clock.
I still think FM basically has what he wants unless he gets a stellar pt. Serviceable he doesn't seem interested in.