Of course the boss has the right to make an executive decision. However, a boss that does that out of a sense of feeling overwhelmed and underappreciated and without a team willing to support him won't last long. Bradford was PM for ONE task. He was not assigned a long term position.
The idea was trashed immediately by the Mattel people in the know, don't forget.
He did not lead his team to victory. He just got lucky because one of the women came up with a better alternative that won the challenge.
Everyone is entitled to my opinion.