First, I can assure the OP that Andrews will do absolutely nothing to help the basketball team.
Will disagree a bit with you, Drew. I agree that bulk for the sake of bulk isn't good. Even in football when you listen to guys in S&C programs up through the NFL when you talk about positions other than the lines, it's all about strength and explosion, and whatever bulk comes with it, so be it.
So, yes, the idea of bulking up is not important in basketball. However, it is a natural effect of properly training and getting stronger, more explosive, and likely more durable. Guys will bulk up differently given the same strength training, but everybody is going to get more cut and bigger to an extent if they are properly training.
As for MJ, he was good when he was a young guy and skinny, but in his prime he was generally between 215-220, and pretty much all muscle. At 6-6 that isn't huge by any means, but that's pretty big, and he very strong. I think Kawhi is a great example. Dude is always going to be lanky, but he has beefed up a lot as a result of strength training. And his added strength is a tremendous asset.