Announcers are influenced by a home crowd. They feel a need to speak louder and faster because of crowd noise and excitement. Fans of the visiting teams always think there’s a home team bias.
That said, it’s possible announcers can actually show bias, but it’s almost always in favor of East Coast teams or, secondarily, California teams.
Valid points; just seems the Fox guys are heavily pro-DET, this game anyway.
Sometimes, I wonder if the TV guys want this series to go 7, and they cheer who they may think is the underdog to get to game 7.