I don't know anything for sure and this is just a guess. I would actually think that it is somewhat special. Unlike many coged belts used in industrial situations this belt has to endure some pretty specific situations. Things like sunlight, rain, heat, cold, etc. Plus unlike most industrial apps we accel and decel constantly on bikes. Industrial stuff usually accels and stays there for most of the time.
Now that's not to say what your proposing won't work. But I'd be prepared for a possible break while your out riding, i.e. carry a spare and any tools needed for a road side repair. If it breaks fix it, get to where you need to go and then decide what to do for a long term solution. If it doesn't ever break, well, then you know that guy was wrong.
B