Edit: Interesting that the headline was changed from the original to no longer refer to Brown university at all. I genuinely wonder what prompted that.
I am not suggesting that Brown University actually A/B tested this. As a university press site, they seem less likely to pursue that. But it would be naive to think that in the current media and political climate in the US, the mistaken interpretation of the headline would not be more surprising, and therefore more likely to grab attention. That's what A/B testing the headlines is for.
There's really nothing to A/B test here. We, especially the media, don't refer to people as Brown the color.
Also: president elect, poet laureate, devil incarnate, court martial, etc.
And we know this sort of thing happens all the time with less scrupulous media outlets. Media outlets surely test specific headlines with the intention of attracting a certain bias depending on the outlets own leanings.
I think most people outside of the US are unaware of US university names. I could name 5 to 10, and that's because I spend a lot of time reading american media and american-centric websites like HN.