Side note to the "being invisible" thing. If that's a big deal to you, you might find yourself with similar concerns about Hendricks. When I watched full games of his he went very long stretches of not being involved at all. The difference between he and Bilal would be that Hendricks inserts himself into the game by being an aggressive shooter, but not much at all in terms of being an on ball player. Bilal is not an aggressive shooter off the ball, but he inserts himself into the game as a slasher/PnR ball handler. It is a much simpler path for Hendricks to become asolid offensive NBA player, but Bilal is more likely to be an initiator. And it makes sense, Hendricks is a good shooter whereas Bilal played PG for most of his career. They are different players, but neither is dominating a lot of the offensive action.
I think we probably make a bigger deal out of this than we should. If you're watching a game and zeroing in on a single player, chances are you'll find yourself bored by all the times nothing happens unless they have that clear #1 role. Keyonte is one of the highest usage guys in summer league and we still have complaints about him getting frozen out. It's just a different viewing experience when you're focusing on one guy versus watching a game normally.