Candance Owens and Megyn Kelly are covering this because it's great for views. This has been the strategy for a lot of content creators, not just right wing grifters. The fact they are siding with Baldoni probably has more to do with adapting their content to align with public opinion. Like being a Yankees fan, wanting to back a winner, and to use that popularity as a gateway to a new audience to whom they can spread their hate.
We'll see how much of the evidence makes its way to the public, but so far Baldoni has been the clear winner in the "battle of receipts." The initial wave of anti-Lively stories and sentiment was undoubtedly the work of his PR team but what we're seeing today is mostly organic support. Lively's camp has been unable to beat the "mean girl" and "bully" allegations. Of course, her being a mean girl and being a bully are not an excuse or justification for subjecting her to SH or SA, so she can still win this if she proves she was harassed or abused.
Unfortunately for her in the court of public opinion she has lost a ton of credibility, and the whole thing about being wed at a plantation and her general reputation for being manipulative has worked against her in a big way. Nobody will just take her word that any of these horrible things happened to her. She really needs these other employees to back up her version of events. Doesn't look good for her so far.