That's their position, but he has is his. This is a strawman. Greenwald didn't say that editing in general isn't ok. He didn't argue that all editorial dispute

That's their position, but he has is his. This is a strawman. Greenwald didn't say that editing in general isn't ok. He didn't argue that all editorial disputes at all times must be resolved with critical articles alongside controversial ones. He suggested it as a solution here. It's not nonsense to suggest it, whether or not the editor accepts it. Maybe they did see it the way you outlined: "garbage story dropped a few days before the election." He clearly sees it as censorship of an article that needs to be published. This is a resignation, so sure, the dispute was not resolved. Calling it a nonsense argument though, that takes a good squint.