It sort of is.

He used his executive position to kill the story.

Could they have written the headline, "Washington Post Endorsement Killed by Bezos"?

Sure. But tradition dictates you lead with the person. People are interested in people.

You are right. It is click-baity, but that's because it is a newspaper headline and all newspaper headlines are "click bait". They literally invented it. That's why we have headlines. Often in bold and large type.

I disagree that this is misleading though, especially if you expect folk to read the whole sentence.