I would love to see this "rock" damage to Gatorskin. Unless it is on the sidewall then I don't believe it. If a rock went through a tire then you should have a hole that you could stick a pencil through.

You could legitimately complain about Gatorskins cornering grip on wet roads or ride quality, but puncture protection and wear are tops. Anything more bombproof is much more heavy and a drag to ride.