The New York Times were also exposed for the same thing recently. NYT chairman AG Sulzberger was outed by one of their own journalists for ordering the publication to produce constant negative coverage and opinion pieces about Biden. Reason being that Biden had been rejecting requests from the NYT to do interviews. Yes they are that petty. Though it's also true that there are now a lot of far right executives in general controlling that publication (same is now true of CNN). This also gave life to the NYT Pitchbot account.
The NYT also posted an opinion piece on July 4th titled "Why I Don't Vote" which proceeds to go into a dialog trying to convince other people not to do so as well. The author as it turns out DOES in fact vote, people did a bit of research on him. He voted in 2020 and 2022. He was also discovered to be a member of one the main groups behind January 6th. The twitter thread exposing this shit was wild to say the least...
Regardless of the constant negative reporting, it's probably too late to fix any of this. With or without the media circus making things 100x worse, Biden would still be in trouble just due to his poor debate performance, but also other appearances as well. And that media circus isn't going to stop, they've seen blood and are latched on until the bitter end. Public perception is everything, and party leaders are terrified by what they've seen and are pushing hard for a replacement.
I'm personally more nervous by the idea of a replacement than staying the course with Biden. My opinion isn't a factor in this matter for the record and it's looking likely at this point that they will in fact dump him (though anything can change at any moment). But IMO, there's a very good chance this will make things far worse. First of all you've got all the obvious traditional issues. Loss of candidate momentum and exposure, loss of the incumbency advantage, weaknesses in the party exposed, infighting over who should be the pick, anger from some that their guy was kicked out etc. There's a reason why primaries are held earlier in the process so that all of this infighting is dealt with and people's emotions can cool off and everyone can come together.
It's critically important to note that the media are not going to go any easier on Democrats if they replace Biden. Good chance it will get far worse in fact. The media were not attacking Biden's age and mental competence because they actually cared about those issues. That much is absolutely clear when you look at all the deranged shit Trump does that they don't push back on. They are attacking Biden because it's a ratings winner to do so, they also want Democrats to lose the election in November because the drama a Trump win could cause will amp these ratings up 100x. With a new Dem candidate, the media loses the age angle. But dozens of new and potentially even more damaging avenues of attack will be made available instead. And you can be damn sure they'll feast on it.