Well, there I go again...
You are correct, sir. Just had tunnel vision on a non-kicking down.
Still, leave this alone, because, by definition, blocking is "intentionally contacting" an opponent. In this case, it is the defender's choice to make contact with the offensive lineman, not an intentional action by the kicking team player(s). The kicking team would be more than happy to not have any defender's rush the kick, and make no contact at all.
Robert