Bans should really be reserved for characters that shape the meta. Like, you better be playing this character.
That being said, yeah Jacqui needs to be toned down most likely but people could also stand to play the matchup better. Foxy demonstrated how to get around her super jump by using an advancing normal to avoid the incoming mix entirely.
The issue I have with her is that it's all on her opponent to beat her. She has so many options to just get in, she has like ten options in her blockstrings, if you guess wrong she does a bunch of unbreakable damage, and she can usually escape if you guess right. You have to make the reads, you have to shut down the neutral, and you have to spend the time in training mode to react to the right option with the right punish. Meanwhile, the Jacqui player probably got a guide on Discord. Online it's a nightmare