While the Rockets getting Bonzi gives them a legit 3rd option, it also gives the Rockets another injury concern (T-Mac, maybe Yao (lesser degree though, Bonzi, 1 or 2 others). Having an average and partly young bench doesn't help, in depth.
Rockets are a legit threat and possibly contenders (even if they didn't have Bonzi, still consideration) if they stay healthy and get solid chemistry. That's what I think determines the aforementioned, or a playoff picture team, making it as a 7/8 seed.