The case was today and if Green says it's been withdrawn I believe him as he'd look like a fool if it wasn't true and lose all credibility. You can check and see if the website's been updated and the petition removed (I've not yet). Sounds as if nobody else joined in the petition with HMRC so looks like we've paid up. It's hung around a while which suggests we've been taking our time paying up.
If that hadn't I'd expect the brown stuff would've hit the fan by now and we'd be dealing with umpteen trolls going on about cloth cutting again.
Hopefully we can move on from this episode.