I don't find that to be a valid excuse. If a law is worded in such a way that companies or individuals will frequently get it wrong, it's probably a bad law. Call me paranoid, but that seems like it just sets a person up with an easy reason to audit.
It's not an excuse. It's just that laws are enforced by people. Think of what happens if you get caught speeding. Does everyone always get a ticket every time they speed? Of course not. Even when you get pulled over you can behave politely and maybe get off with a warning. This is how every law and regulation works.
