OK - color me stupid - but I used the gold and red can - which does NOT have any warning about use on glass.
Go figure - I read it again just to be sure.
What I can say is that I was very careful - applied it to a piece of glass I didn't care for first, and looked for scratches. Didn't see any. Then, applied to the windshield corner, and looked for scratches. Didn't see any. Then went about applying to the entire windshield.
Still don't see any scratches - but YMMV. Either way - I only applied because the windshield was in poor shape to begin with (wife's car, long story). Would I use this on my car? Nah - but then again, it doesn't need an abrasive to get it clean.
(Should also note the can has a small duck on it - because 'BonAmi won't scratch surfaces, like a small duck won't scratch for food for 2-3 days after being born' (or something like that - can's in the garage).