Up until yesterday, I had not heard of a single case where KB3022345 had been installed where SFC did NOT report corruption. Yesterday, I heard the first case in which it did not. I can only guess, but my guess is that that update has been fixed. I certainly hope so.
However, there are a lot of PCs out there that are operating with corrupted system files and don't know it because thy do not even know of SFC. I have yet to hear of a case in which someone experienced a negative affect.