Don't think that is the reason.

Edge of the broken heart was in the boxset and it's been so many times out there, with most recent i believe in the single of " Always "

Bon Jovi could have easily put in the box set some New Jersey or Slippery demos that haven't been out there for a long long time.
Borderline, I'd die for you (alt version), Rosie, Love is War, Lonely is the Night are some that come into my mind very quick. Or if you want to make it real special why not some 80's recorded covers they 've been playing ??? like Boys are Back In Town, or Seven days, or Drift Away.

It is clear i believe that they wanted to make a 90's sounding Boxset. And don't get me wrong, I liked the box set.