I find it a bit strange to assume you can only understand these topics with a philosophy degree. My CS degree had a good chunk of philosophy baked in (philosophy of science) and parts of it strongly encouraged you to dive into philosophy. AI 101 introduced me to Gödel for example and logic in general.

From the article it seems like they mostly do "is AI conscious" and ethics work. Call me a skeptic (no pun intended) but it looks like "hiring some philosophers to confirm the things we want to keep saying for the sweet AGI-race-$$$ to flow". Kind of like these tobacco studies way back when.