Fair points, but dances around the main thing rather than expressing it.
> he understands the very real crisis Cameron is facing and takes it as his role to push his friend into emotional danger.
I would disagree with this. I think Ferris didn't really know what to do or what he was doing. He was like the little drummer boy -- he only had one thing to offer (his joie de vivre), and tried to do so no matter how inadequate or inappropriate it might be.
In the end nothing Ferris actually did made a difference. It was simply the fact that he reached out with compassion and care that produced the circumstances that led to Cameron's emotional crisis, and empowered him get through it to a catharsis.