The Deputy PM is ineligible to be in parliament, and that's not a big thing? Joyce becomes Acting PM whenever Turnbull is out of the country... and he's not eligible to be in parliament. You don't think that's important?So if Barnaby lied as a hobby, if would be fair game?
If he lies, its perjury and let him be charged with it.
Is it negligent? Probably. Is it worth all this kerfuffle? Absolutely not.