ParanoidDrone
Smash Master
I touched on this a bit earlier but I'll say it outright.4. She is probably top 15 as long as your opponent is bad at SDI. But in top level play, it should never be the case.
I can stipulate that the new SDI multiplier makes Witch Twist unreliable at best. And certainly, Bayonetta's "flowchart" combos (e.g. Twist > ABK > ABK > Twist or Twist > ABK > Twist > ABK) make it very easy to predict the second Twist and SDI out. However, I am unwilling to write it off completely until it's been demonstrated in actual matches that a player can reliably SDI out on reaction, if only because Witch Twist is still a frame 4 move that can be done OOS. So unless you're deliberately baiting Twist to SDI out (in which case why aren't you dodging it outright) I'd like to see it in action instead of simply proclaiming it busted and useless.
The reason I want to see it in an actual match is because when testing with a partner, they know exactly what's coming, when it's coming, and what to do for an optimal escape. All of these factors will be reduced outside of a testing context.