it can easily be a superstition. I 100% buy that. Footballers are crazy superstitious. Easily checked, does he do it in in other games where badges are on the ground.
Coincidental, I find that less easy to beleive. He looks like he deliberately navigated it.
For fear of not being photographed standing on the badge and that photo misused in the media to link him to a move, not buying that one bit. That is anti-confirmation bias and devils advocate taken to absurd.
Respect for the club his dad played for, and he watched some of as a kid, that seems most logical.
Doesn't mean he wants to or is coming here, but it doesnt mean highlighting it is daft and meaningless either. It is just a comment and opinion on a gesture that happened.