The thing that gets me is this joke about 'old man about to die with a young wife' has been around for decades. It's the last half of Anna Nicole Smith's life. We pretty much can count like clockwork when Rupert Murdoch has had enough of last decade's wife and wants a new one. Leonardo DiCaprio has an entire legend about how he moves on the moment his girlfriend turns 25! I'm more offended by 'fat man/thin wife' sitcoms much more than I ever will be 'lol they're marrying a hot young lady before they die'.
It wasn't even that vicious of a joke, it was just the most benign 'we're waiting for the funeral' jab that's been made since that man moved from Marla Maples to Melania. The biggest station revocation came only because KDND literally killed someone in a contest, so there's no way this is a serious effort to challenge licenses because the station cannot possibly control what the network airs, even if they are owned by them, and we're not in a situation like the Super Bowl halftime show. KTRK isn't going to get anyone in Houston whining about a lead balloon punchline, and nor is WPVI.
Docking a license just because of a tired joke just feels petty and lame, especially when you've had a national news operation sanewash their way towards a national newscast that's just now a big-budget Inside Edition rather than a full sum-up of today's events (and which is happy to pre-empt anything on the schedule, like they did deciding the last five minutes of General Hospital didn't need to be seen so David Muir could show video of politicians chatting and remind us of how King Charles is).