It's interesting how a number of Facebook engineers are willing to comment on what they work on, while the company itself refuses to provide any official statements.
You can assume anyone named and quoted in an article like this is speaking officially on behalf of the company they are working for, with some level of preparation and filtering by their Comms team.
Nah. This kind of segmentation of what can be disclosed exists even within engineering. E.g. in https://softwareengineeringdaily.com/2019/12/17/kubernetes-a... Karl Isenberg is willing to talk pretty freely about their CI/CD pipeline but is very cautious and doesn't give specifics when talking about the pipeline for pushing firmware updates to cars.
I think a better analogy is probably that engineers are also not willing to implement any feature anyone asks for.
The company has a lot of public statements that are easy to find, and the people who aren’t “providing comments” are likely either working on the next ones or think providing this comment would not be helpful to the company (including taking into account how much time they can invest in it).
Of course none of this is specific to FB in any way.