I don't see why it would. Did C60? Are fullerenes known for unusual reactivity? I'd expect the opposite, if anything.

No, but boron compounds are notoriously reactive and unstable. My dad, brother, and spouse, all worked on boron chemistry during their careers. So I learned a little bit about it, though I'm not a chemist myself. You treat every new boron compound as if it's about to detonate.