The jaggies sure does stick out a lot to me as well. I've tried lots of methods to reduce them, and found that the methods that would completely smooth them out would result in the picture having much less detail left. (And looking very "DVNR"-like)
The key was to find a balance between reduction of jaggies and preservation of detail. After a lot of work I think I've found a great balance. Some jaggies CAN be seen here and there but they are reduced a lot, and they need to be left there to keep detail intact.
Check this comparison, raw GOUT vs the script:
