Not anywhere close to the vicinity of true. I had a really nice informal chat with Cuonzo the other day, and he beamed with pride that Bird was going to the Durant Skills Academy as one if the top 15 wings in the nation. Furthermore, we talked a bit about his recruiting philosophy, which really hinges on getting a lot of talented wings for his system. Bird fits that mold to a T. Jabari isn't, hasn't, and won't go anywhere.
I'd bet the person who posted that thought Bird went to the NBA. This also came from someone who didn't even do a Google search of Cal's roster before posting, or he'd know Kravish is also returning. Honestly, if I were you, I'd laugh that poster right off the internet. By every account I've heard, the new staff has been met with overwhelming acclaim in the locker room.