This only affects Motion blur. Not bad focus.

Fixing focus would be near impossible to automate. Since your focus is based on depth/z-axis, its a plane that is not visible to a 2dimensional image, so there is no real helpful dataset to analyze to resolve the bad focus. Also, important variables as the amount of iris blades, their curvature, distortion if you're using wide, etc also come into play.

De-MotionBlur is cool, but its really nothing new, most compositing programs have been able to do tracking for years, and you can use the tracking data to stabalize footage. What we have here, is essentially Photoshop analyzing tracking points on a single image to figure out a cameras shake/movement and using that information to resolve it.