Deathstroke would body Kabal free.
Let's be honest, Gas blast will be a mid on the ground and high in the air (you know, that thing that did to Cyborg's iaNB) which means you don't have to actually block a single one. Hell, especially full screen low shots will go under it and hit clean. On top of that, it'll probably have a closer recovery time to DS's iaQF as opposed to iaNB, which already took a recovery nerf.
Quick Fire is 10f start-up, and NDC is probably gonna end up more like Grundy's WCC, which would make it complete trash unless he MB'd for armor, which would be a waste since unless you're Batman, you don't rely much on pressure in IGAU as opposed to legit mix-ups.
Ground Saws are gonna end up unsafe as fuck, and again, from DS's perspective, reversal MB QF will just be more free damage.
Especially with what happened with Scorpion, you know they'd make him just as trash and useless as they did after the nerfs in fear of "Hurr derr, let's ban Kabal in Injustice without even taking a few weeks to learn the MU!"...