If Fox cared about its financial well being, they'd bring Tucker back. Tucker was in negotiations for extending his contract to 2029, but obviously any further negotiations on that would now require a substantial bump in pay.
But Murdoch knew Fox would take a hit by firing Tucker. That was too predictable. He probably didn't know it would be this bad, but he knew it would be a tough move.
So obviously other compelling reasons trumped the finances. CIA/NSA/FBI got involved? Big Pharma advertising? Black Rock ownership? The first step in rigging the 2024 election? Dominion related? Rumor said it was something about his speech but there was nothing in it that was out of the ordinary for Tucker.
But Firing Tucker is definitely, so far, proving not to be in the interests of the shareholders. Tucker's 3 minute youtube selfie has broken some 75 million views. Fox News market cap drop substantially exceeds the Dominion settlement.
Tucker has apparently reached ancient Greek son-of-Zeus status.