The real reason Carlson received so much journalistic vitriol was professional jealousy. From Rachel Marsden at swentr.site:

US journalist Tucker Carlson listens to Russian President Vladimir Putin during an interview at the Kremlin in Moscow, Russia. © Sputnik / Gavriil Grigorov
American establishment media spent the days in the run-up to Tucker Carlson’s interview with Russian President Vladimir Putin pre-judging it as propaganda, and soliciting the opinions of establishment figures, like former US secretary of state, first lady, and presidential candidate, Hillary Clinton, who dismissed Carlson a “useful idiot.”
All this before they even had the slightest notion of the interview’s content. All they knew was that Putin would have an opportunity to speak, and that ever since Carlson left Fox News and turned independent, there wasn’t any obvious establishment figure to babysit him or control what went out. Worse, it would air on the X platform (formerly Twitter) owned by Elon Musk, who describes himself as a “free speech absolutist.” So it did not bode well for the kind of propagandistic framing that the Western establishment enjoys when it comes to locking down narratives under the guise of fighting a war on fake news.
The fact that journalists balked at the very notion of Carlson interviewing Putin reeked of professional jealousy. There isn’t a credible journalist out there who wouldn’t leap at the same opportunity if given the chance. Which is why, as journalists from CNN and the BBC confirmed, they’d long sought their own interviews with Putin — unsuccessfully. Presumably, Carlson’s format, audience reach, and freedom from establishment media constraints were appealing enough to land him the opportunity. Good for him. And for the journalistic record that can only benefit from any and all contributions.
Maybe TC was accepted into Criminals In Action and it’s the long awaited faction feud with some last boy scouts somewhere in the bowels of Leviathn?
Australian media had the Weekend at Brandon’s mocking Dear Leader based on the 1980’s comedy.
All that faded glory…at least all are equal.