You can tech roll and back dash out of this, just fyi. I know it relies on the weird timing of the b23 ender resulting in them missing the tech roll, just saying.
If they tech roll, you know what they will do next time. So cancel b.23 into a dash or hell...
do b.23 b.23 into another b.23 and you'll catch them. Rolling doesn't do them much of any good since they can't make anything of it. They lose all invuln frames meaning we get to get back in on them for free. His b.23 covers crazy distance.
As far as backdashing goes, within the boundry of human execution and with the variety of options we have on top of this reset, rolling out may not be the best plan nor is backdashing. This isn't something that is flatly avoidable, and I'll be posting a video soon about how it should look between the reset and the f.2d and how quick they would have to react.
Once its done rendering, this will show the speed at which the f.2d can come out. I mess up the charge cancel but the rest is pretty spot on. Oh god the bad quality. 3DS why are you so bad at recording