You’re wrong here, because you’re overlooking the fact that simply being on the card is a good look. It’s not like he’s battling on born legacy.
I get where you’re coming from. I’m all about managing your brand. It’s actually a positive to be on this card, even if the opponent may not make sense.
You’re also making an assumption that he can just come back and ask for Mook, a battle that may not even be on Mook’s radar. The possibility of it happening only came up because an opportunity presented itself. They were scrambling for an opponent, and I’m sure Mook wanted his second half. Ultimately, Mook decided to pass because none of it made sense from the lack of preparation to the opponent.