Just my opinion

All the history of New Orleans music, and this is what they decided to have. This is what I was disappointed in…

They could’ve done an entire history of New Orleans music from Jazz, to R&B, to old school Rock and Roll, to Mardi Gras music and funk, to NO Hip Hop…

They certainly could have - but if you look at the history of the SB halftime show, it isn't really about celebrating the host city. There's a little bit of that but it's not really a "thing".

https://en.wikipedia.org/wiki/List_of_Super_Bowl_halftime_shows