Meta can act like they don't know what's happening, but they do. As do all the other tech giants. They've been censoring and curating people feeds for a long time. This story is amusing since it's one instance where a "Team Blue" was affected. In general, it's usually "Team Red" channels are the ones getting censored.

There is an interesting project America's Digital Shield that studies these practices (https://americasdigitalshield.com/). They capture "ephemeral" content from search results and social feeds from volunteers, with a balanced distribution of the political spectrum.

Basically, the idea is that none of the content we get fed from tech giants is unbiased, even search results are manipulated to affect people one way or the other, especially when it comes to politics and elections. It's pretty upsetting once you understand what's happening.