I feel like the off key moments are even more suitable for Blitz because he doesn’t seem like the type of person to sing the song completely right tbh 😂
This is exactly how I would picture the time Blitz overhears Moxxie planning to propose to Millie and Blitz decideds to help out the special occasion by setting the mood.
Ironic that in reality this dish was peasant food, so if Millie was from France countryside she probably would think "that's only one dish from menu i familiar with , i choose this"