Well, I think the opposite result would have been very interesting/surprising. So I think it's a good experiment, and it's good to publish negative results.

The subhead seems a tad sensationalist. If interference had been shown, it would have suggested strongly that this can happen at the smaller scale as well, and that it didn't is probably disappointing for those that hoped to show it in the analogy. Not sure how it "crushes" those theories.