That's odd. I take my scales off all the time and replace them with "Plus Scales" and they're not.....ever glued on. They come out of the factory not even glued on. Snap on on the rivets. The only time people glue scales on is when they mod their SAK's.
I agree. I have dozens of Victorinox knives. especially Classics, and I sharpen, clean, and resell them. They don't have glue, and you can usually pry off the plastic scales and replace them. The scales snap onto the little metal protrusions.