Sure. Jacqui Hi-Tech is probably bottom 3.
But, I personally believe Jacqui Full Auto is High Tier. She is by no means perfect (Short limbs, terrible wakeups, no armor launching moves), but when you combine her incredible walk speed, super safe normals, with safe 50/50 mixups that lead to some of the highest damaging combos in the game, then you have a devastating character when you finally lean off the machine gun spam and use it to direct where on the screen you want your opponent standing.
Personally think Jacqui is really good. But I'm a scrub...so what do I know!