It might be interesting if hide were a toggle rather than a binary hidden/not hidden check. Someone without scan would still see your shadow if your hide skill was terrible, and be able to look at you. Anyone looking at you would roll for a success to see your short description (whatever it would currently be, i.e. the masked man, the hooded figure, the tall guy). The higher the scan skill, the more information they get when they look at your 'shadow'. Scan vs hide would still work exactly like it does now, with a check each time you try to look at or interact with a hidden person. That would at least give you a shot at getting away undetected, even if you rolled the equivalent of a critical fail pratfall.
Then again, that might make hide too powerful. It's already an invisible button once you hit master. Probably part of the point of all this is to reduce the ability for people to ghostwalk through the city and murder without risk.