Some Fox employees pointed Monday to the lawsuit by Carlson’s former producer alleging rampant sexism on the show. The other subject of her allegations, producer Justin Wells, was also fired Monday. Others suggested that emails from Carlson deriding management that had emerged in the Dominion lawsuit — and perhaps other, redacted ones — were the last straw.
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What does seem to have changed was the rate at which Rupert Murdoch is making aggressive moves on the fly.
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...the sudden moves, the endless leaks, and the general sense of an out-of-control train has also raised questions in the middle and top ranks of the company about the elder Murdoch’s state of mind, temperament, and what the changes suggest about the path forward for the media empire he built.“There’s a long list of pretty drastic steps from him this year,” one person familiar with the details of today’s firing told Semafor. “People asking questions about whether an octogenarian should exert influence over the country should also ask whether a nonagenarian should exert influence over America’s most powerful media conglomerate."
The decisions Murdoch has made in the last year DO seem to be the decisions a really, really old person makes. Could it really be that simple? It's as good as the other explanations.