I think you'll find that the coating gets scratches, etchings, etc... just as the clearcoat did. That's its job...sacrificial barrier. You'll most likely have to polish out the imperfections and...
A really good coating is immune to acid, chemicals, light scratches (especially the human induced kind), and can even protect the paint from minor fender scrapes. No other LSP can do this. Its like...
I wouldn't get hung up on coatings durability claims. Anybody that can go two years with a daily driver without putting a polisher to the paint (thus wiping out the coating) is not of this earth.