This won't be addressed
Cost of replacement vs. low risk makes it unlikely to be addressed:
- Subaru are nice cars, but hardly on the hotlist of most stolen cars
- it takes effort to do this for a low return value
- you need to be close enough to catch the signal when transmitted to have the initial count
- they're older cars: it could get interesting if that's still the case with new cars.
I can't see Subaru pay too much attention to this.