Sure, I understand Rubio's point of view. And if you're a guaranteed top 4 pick, why should you work out for more teams? No one cares that Blake Griffin isn't working out for other teams. But actually, Rubio isn't working out for anybody, just conducting interviews which seems a little suspicious to me. Even Harden and Evans are at least doing solo workouts.
But more to the point, the only opinion Jennings can offer on Rubio is what he's seen playing him, which was exactly once for limited minutes and Rubio was injured. I'm sure it does look like all hype to him. Why do I have to work out against all these guys to prove I'm in the same league and Rubio doesn't have to? Plus there's the fact that Jennings already knows all these guys from playing against them in High School All-Star games. They're all his peers. Rubio is an outsider who plays in a different country, he's younger than all of them, and he's supposedly uber-talented. Wouldn't that sound like hype to you to? Even if the hype is coming from professional basketball scouts?