One thing that could work wonders here, although I would not worry about that "scuffing" noise is, these short/smallish cars do not have a handbrake lever return spring mounted on the rear calliper, longer/bigger cars usually do have, I think that the logic with these cars is that the handbrake cable is short enough and low friction by design, so that the usual handbrake lever return spring is not really required as the calliper's internal return spring is strong enough to pull the handbrake lever fully back when the handbrake is released.
Way back in maybe 2004ish, it was quite common for people owning mainly Fabias, to add an eternal spring to the rear calliper - there is probably still points on the handbrake lever and the calliper body that a spring can be fitted to - as in designed for that purpose, I bought and fitted springs to my wife's 2002 VW Polo and that worked very well. When she bought a new VW Polo in August 2015, again, I ordered in a pair of handbrake lever return springs, but with these later cars the internal calliper handbrake lever return spring seems to be strong enough to do that job - at least when the cars are new. Anyway I fitted these 2 springs just to avoid that scuffing issuing ever happening, and so far at 34.5K miles and almost 6 years it still works okay, but I remove the calliper from the carrier and clean everything up every year now, initially only every other year.
If you are interested to buying external return springs, the springs that work best, in my mind/experience and I've tried the 2 available version, are :-
LH Handbrake return spring 7M0 615 295 (from 1998 Sharan) – 1off
RH Handbrake return spring 7M0 615 296 (from 1998 Sharan) – 1off
Edit:- the other version of springs are from a VW Vento or Jetta - but I found that they were slightly too long/light so only added a slight amount of extra returning effort.
Another Edit:- bear in mind that 1998 Sharan is a VW, SEAT also made their version so VW or SEAT dealership can order in these springs, Ford Galaxy also used them it seems.