These same rumors state that he was treated for the flu, and practiced like '****' during the week. I think you compound missing the plane, having the flu, practicing poorly, partying the night before, suggests that his head was not in the game. Since he was dressed, and not made inactive, he was there incase of an injury.
As we all know, after decades of being a coach, I think BB has very little tolerance for such behavior. I was surprized 2 years ago that Chandler Jones actually played after being stoned, so BB will not sacrifice talent to teach a lesson and hurt the team. I truly believe that BB and MP probably saw enough to determine that Rowe at that moment in time was the better option.