Removing/Blacklisting the drivers would be better.

Better yet is running as a non admin user. (which almost no Windows users even though it is quite easy). (and disabling WSH and setting %temp% as non-executable, etc.. though these are a bit more arcane)

All the tape does is limit when they can use the camera/mic as I assume people are taping because they intend to use it at some point.

Meanwhile they can keylog all your passwords, etc. etc, etc.

To me it smacks of closing the barn door after the horses are gone.

I do get that there would be the minor advantage of it preventing recording as soon as the infection happened but I fear that too many people will see this and think it is a good answer instead of a desperate last resort.