Are you being deliberately obtuse? None of those analogies function, the guy was brought on towards the end of the game as a sub. Bruno has been captaining us for four games in a row and has been playing well, Maguire on the other hand has been shite for over a year and his captaincy is being questioned by the fans, pundits and if reports are to be believed - the dressing room.
Not taking the band would have been very easy part way through the game, and would have displayed a bit of respect for Bruno and acknowledged his own struggles and shown a bit of dignity. Instead he's shown an inability to read the room and potentially pissed off some of his own team mates and displayed as I say a complete lack of self-wareness.
Will he accept though, if he took the band off Bruno with only a short amount of game time left?
I'd have liked to have seen the interaction, and as the poster has questioned above - whether Bruno went to Maguire or the other way round. If it's the former, it's less bad.