I honestly see both sides of this.
Having watched them for a few years, I just don't know if I see star players. That's more true for Lafreniere.
That being said, the Rangers have done nothing to help the situation.
The kid line is fine, I guess, as a line. A bit one-trick for my taste and not enough scoring, but they can be effective in a certain context. My main concern with it is that it creates this very awkwardly shaped block in the puzzle. They have to be together, but we're not putting all of them in the top six.
I get that Chytil kind of is where he is with our center depth, and maybe Laf is just mid, but at the very least, Kakko should be playing with finesse players to match his tank-like style, not other grinders. That's why the line doesn't score.