On top of that, the Ellison regime didn't change the personnel directly in charge of CBS Studios (though they did change the people in charge of Paramount+, which is also relevant).
There's also the lingering question of Kurtzman himself. He signed a five-year extension...five years ago. Not a peep regarding a renewal.
What's wrong with comedies?
Star Trek has a long history of comedy episodes, and arguably even a film, depending on how you feel about "The Voyage Home".
Comedy and morality certainly aren't mutually exclusive.