Yes I know. I was trying to get him to go in to detail so that I could point out that it doesn't actually work against people who know the matchup.
Think about the moves that you would actually want to use this on. Sure, you can easily stuff Tremor, or Predator, but why would you? If you think those characters are gonna armor then just block and take your full combo. There's no point guessing with b32 in this situation and risk whiffing it over a delayed wakeup, or having them block it and giving up your corner advantage for the chance at a measly 25%
So when would you actually want to stuff someone's wakeup? Well, against wakeups that you can't punish on block. Jax's straight dash punch. Cage's shadow kick. Tanya's rekka, Jason's command grab, Goro's punchwalk etc...
The problem is, all of these types of moves are too fast to be stuffed out, if your opponent knows the matchup and does a tech roll after superman in the corner. If you try to go for b32[h] after a superman to stuff these characters, you will get beat by their armor if they tech the knockdown. (and they always will because there's no reason not to if they are planning on doing a wakeup anyway).
So, superman into b32 to stuff armor is not a viable tactic. It only works against people who don't know what they're doing, or against moves that you shouldn't be trying to stuff anyway.
If you want to stuff the faster, safer wakeups, you are going to have to end your combo in b111+3 (which is fine because that's what you should be ending with anyway in the corner).
This string is a HKD which allows you to go for b32 much earlier, and therefore allows you to stuff something like Tanya's rekkas. The problem is, since you're doing it so much earlier, the Tanya player can easily see the b3 coming, and she will simply react to it and not do the wakeup. Now you've just wasted your opportunity for a mix-up on her knockdown and have given up your offensive momentum.
"Raiden is amazing at breaking armor" is just another in a long line of misconceptions from people who don't play the character at a high level. I can name 5 characters off the top of my head who have armor breakers that are actually practical in a high level match and I'm sure there's more that I don't know about.