It’s basically a fuck you to the shareholders. Hey we’ve got this dead asset someone will pay for but we won’t sell because they were mean to us.
Any exec who operates that way should be shown the door ASAP as they are likely doing similar emotional management of other aspects of the business.
ABC's shareholders are Disney. Whatever Nate offered them isn't even a rounding error in Disney's $36 billion dollars in profits last year. The shareholders aren't going to care.
If they feel it's damaging to have it public, then it could be argued that selling it would be irresponsible. I'm not arguing it is or it isn't, but reputation has value and management of it is part of what shareholders expect.