I feel like sub zero has armor on his slides now. Or maybe it might be lag. Regardless, I have gone through Kabal's ground saws with EX slide three times (but it didn't show the iconic yellow armor when it went thru :\)
I haven't been on in like 2 hours but I doubt it's come out. You most likely would have gotten a notice as soon as you started up the game, telling you to install 1.05 or whatever. What you experienced was most likely invincibility frames on wakeup.