... scar tissue isn't Fuzz either ...
Well, on the other hand, fuzz could be scar tissue in the sense of similarity in properties.
Both delay/oppose free movement, both can be manipulated effectively so as to restore rom at a particular area. Both are made up of collagen fibres, both are sticky and rigid.
It is true that fuzz can be more easily manually manipulated but the same can be true for scar tissue if handled correctly as it is forming (fibre combing and straightening).