I had some similar thoughts as well, but I also saw some different things. First, I agree that I liked that Kabongo was hitting his outside shot. His free throws on the other hand were very worrisome. I think that it might have just been the pressure more than anything else. I did like the fact that he was putting himself in a position to take open shots and he was moving around without the ball.
I liked Millers play. Some of the games that I have watched he does just hang around the perimeter but I noticed him down low fighting for those crucial rebounds when it mattered the most. That brought a smile to my face. I also agree that he needs to do those sort of things for the whole game and not the crucial minutes.
Overall, I would say I was pleased by both players performances. They didn't take over the game but they both contributed to that game and keeping it close.
From what little I've seen, it seems like Pierre Jackson and Quincy Acy are the ones who try to take over games for Baylor. Everyone else sort of sits back and picks their spots, including PJII and QM.