Ah, something I can comment on with a small amount of authority.
Quick background, I've met/interviewed/hung out with quite a large number of country music artists. I have spoken to Taylor Swift (though it was a decade ago) and a longtime friend is the head of promotion at her label. I've hung out backstage, interviewed many, many artists, been invited on tour buses and to private performances.
In these situations (a meet and greet is what this one is called) the artist is almost always on their best behavior. They're "on the clock" as it were, and country artists in particular (Taylor was country before she crossed over to pop) are always cordial to radio people, because the people they meet decide whether or not their songs get played. Conversely, radio people are expected to be on their best behavior as well. Relationships with label and artist management are critical, and years of trust and goodwill can be ruined with one stupid remark or action.
My understanding of the situation is that this guy (he was a morning show host, not a reporter) grabbed her during the above photo, was subsequently removed from the event, and Swift's team reported the incident to station management. They investigated it internally, and he was subsequently fired. His allegation (and the reason for his suit) is that Taylor Swift personally got him fired. I know from my experience that she can be impulsive and likes to do things her own way, but demanding this guy be fired seems wholly out of character...not just for her but for artists in general.
With a few exceptions - and I know this from first hand experience - the artists don't remember you. Oh, they will smile and nod and say they do, but they don't. So the idea that she would reach out to the station management and say "I want David Mueller fired" is unlikely. To her he was just some guy who posed for a picture. The label also would be very unlikely to attempt such a thing, as they tend to stay out of internal station politics (again, I know people at the label). They would certainly express displeasure, probably tell the station that the guy is no longer welcome at their meet and greets, but they still have to have a relationship with that station.
Station management fired the guy, and if he did grab her ass, or a client's ass, or a listener's ass, or a co-worker's ass, his ass should have been canned. This has nothing to do with feminism.
Finally, he's asking for $3 million in lost wages? Please. Maybe 20 years ago a morning host in Denver could have pulled that kind of money over a 5 year contract, but nowadays nobody in a large market is pulling 7 figures to do mornings on a country station.