Earlier quoted context omitted.
You’re not answering “why should”. You’re answering “why can” - a question which was not asked.
In this situation the distinction makes no difference. The editors' opinions are just what some otherwise random people think. They happen to have control over what a newspaper reports so they get to broadcast that opinion widely. Them being overruled by a different random person with somewhat more power over what the newspaper prints is not philosophically interesting. Nobody is seeking these editors out for their p…
These are not random people whose opinion matter as much as those of other random people. At least in theory, people seek the Post for the quality of the work done by the editorial staff. Accordingly, the staff should have more — not less — influence over the content of the paper.
No one buys the Post out of a wish to read Bezos’ personal views or those of random strangers.