There is more to it than this. It was obvious Carlson was a racist, or playing to the racists for years by the sewage he spewed on his show. I'm going with the leaks are from within the upper echelon (possibly the Murdochs) and that they are cherry picking quotes that make Carlson look bad, while making Fox look like they were shocked that a racist and a fascist calling for violence was among them. The leaks are a manipulative media channel that knowingly utilized this scumbag Carlson for years, and is attempting to play their viewers once again.
Carlson once called his female viewers “post-menopausal”. Their audience is old, unhealthy and not being replaced. Does FOX, know it and has to find a new audience and try to modify its reputation? Do a few more talking heads roll and the network spend a couple years trying to reinvent itself? Apparently FOX is now persona non grata, letting Tucker go ruined their reputation amongst much of the faithful. One of the lead stories on the Newsmax show was “Is FOX the new CNN?” (The underlying point, for those who don’t jive with this nonsense, is that FOX is now a commie liberal rag). Lindsey Graham said - “We’re not generating enough angry white guys to stay in business for the long term.”
If Fox wants to be more than a niche broadcaster, they are going to have to find a broader audience than angry old racists\fascists. The lawsuit gives them an opening to retool, they’ll take a ratings hit (like what is happening now) but I'm assuming can pivot to a less overt form of the "woke" fascism. Which does seem popular in the FOX demographic of the country. Fox doesn’t find their audience; they make their audience. Their factory is just them retooling for the next year. Whatever they make next, it most likely will be unsafe for democracy.