Mike Keeber (who actually works for, or at least used to work for, Great Western) is certainly no expert which the BBC is trying to portray him as. I have seen a number of internal briefings written by him which are just plain incorrect, including one that points out features on supposedly counterfeit tickets but which are present on certain types of tickets that come from S&B TVMs.
It might sound all exciting or mysterious to describe something as from the "dark web" however phoney tickets have been, and probably still are, sold for years at drinking establishments, workplaces, and amongst social groups. It's primarily the reason why the requirement to hold a Photocard for a 7 day Inboundary was reinstated a couple of years ago. Indeed, the BTP have already had at least one successful prosecution of someone, back in 2014. We aren't talking about the odd person photocopying tickets, or altering the date, but mass cloning of tickets that work barriers and look almost identical to the originals.
It's time someone in the rail industry got a grip and decided on a common standard for ticket printing and designs, but no, we have now seen at least three new designs in the past few months, on top of the minimum of 10 variations that already exist.