Did you actually read the article. Ofcom used a "novel reading of the law" to exempt Wikipedia.
The law it seems already covers Wikipedia. Ofcom are choosing not to enforce. I interpret the watchlist comments as ofcom setting up a defensible position for themselves.
Yes the law is probably wrong to include Wikipedia, but the enforcers of the law seem to have common sense. Which overall seems to be a win.
No actually, it's not a "win" if everything is formally illegal, and everyone lives in fear that if they don't keep appeasing the faceless unaccountable bureaucrat, they will be prosecuted tomorrow.
"For my friends, everything; for my enemies, the law."
I'm guessing they won't do it because it will finally wake the public up to all of this, I.e. bad press + scrutiny. The law should be applied equally to all, it shouldn't be a popularity contest.
Considering wikimedia hosts what most people would consider porn (randomly came across a video of a couple going at it once) without any ability to filter it from the rest of the content/hide by default, it's not that surprising they are covered, I'm more surprised ofcom relented.
Could someone seek a private prosecution to make a mockery of the law?
I did read the article, yes, and it is clear to me that this is a bug, not a feature. Ofcom were suddenly able to find a "novel reading" when directed to do so by a court as a means to temporarily make the problem go away and to avoid having to weaken the legislation.
They know full well that if a successful legal challenge forced them to weaken parts of the OSA by removing service categories from scope, that they'd effectively open the floodgates to more challenges over other categories. The government and Ofcom don't want their precious work ripped up and the courts seemingly don't want to be responsible for doing so.
Whatever loophole they've found, it is practically a certainty that it will be addressed in the future.