Come on y'all, lets be a bit more constructive, your proving the stereotype that ragna players are....well..you know lol.
I play against Noel pretty frequently, and i'm not going to lie, the fight is fucking hard. And yes, Noel's drive moves do have invincibility, but it depends on the drive, as some have upper or lower body invinicibility. Basically, there are a few points during her pressure you need to watch for to escape.
Optic Barrel: IF a drive string is cancelled to optic barrel, depending on distance, you can either straight run past that shit, or try and hells fang through it, which will be a counter hit. Risky, but it takes away Noel's only true safe way of ending her drive chains.
BAIT THAT 6A. Seriously, this bitch's antiair is so stupid good, only choice is to bait it since you will eventually be forced into the air at some point, which is fine, because your j.c is awesome. You absolutely have to be wary of this move at all times.
Work on spotting Noel's 2d during the startup frames. I am so serious with this one. THis move is a overhead that jumps over lows, and will really ruin ragna's stuff. If you can spot it's startup animation, you can either uppercut on reaction, or i've even been able to 6a.
Punish 3c. Man this move is so terrible without RC. Ragna gets 5c punishment combos all day long. Also if your spacing is correct, 2b will actually stuff it.
THis matchup is all about ragna being able to interrupt noel and turn the momentum to his favor. If you let her just continuously run you down, ragna just doesn't have the tools to pull it out. Be patient, use your range and pokes intelligently, uppercut the false gaps and drives with slow startup, and get knockdowns. Noel can't really do anything if ragna is constantly pushing her to the corner, so recognize when to keep the pressure going, but keep it safe at the same time. Hope that helped.