I can't tell if you think I'm referring to Ime in my post. To clarify, I'm writing about Malik. But yes, I agree that Ime is a mediocre shooter.
But to address a point you raised about why Malik isn't getting more minutes, I would guess Pop is deciding if Ime has anything to offer, or, more to offer than Malik. Pop went with Ime early in the Cleveland game but after realizing that wasn't working, went to Malik and Ime didn't get back in.
Perhaps in the next few games Pop will have made up his mind? Or, he wants to keep both sharp (or at least as sharp as they can be for bench players). Obviously, mind-reading Pop is rarely an easy thing to do. He's usually over-cautious with everything so this is probably another example of that.