Yeah, that fight was entirely banana based, the ZS was clearly looking for openings to infinite as well.
This is where matchup ratios start to get tricky though. Do we account for those infinites now that we can see they are obviously usable? Despite it never being seen in the American metagame?
Diddy ends up becoming a very interesting character with this ability. For characters who cannot infinite Diddy back, it becomes an issue of how easily they can avoid his infinite, making Diddy basically a better ICs. And for characters who can infinite him back, the matchup becomes centered around that character's ability to get the nanners from Diddy, and the ease at which they can infinite Diddy.