Jason Schreier is more of an investigative journalist than a daily news reporter (at least, that's where he excels, he certainly does both). Plus, I didn't get the feeling he would be interviewing the co-founder of the company just to purely talk about the game... Numerous other PR mouthpieces he could speak to for that (no offense to anyone at CDPR!).
I really don't care for Schreier's political/social views, but damn it was impressive to see him in action. He tried to throw Iwinski off several times to get him to reveal info. Whether you (not you, Su, but a general "you") agree with his methods or not, that was pretty intriguing to see.
I think, ultimately, we aren't going to learn much more about the game for now. Little tidbits are nice (full body FPP and such), but none of these interviews are going to shed more light on the gameplay itself, I don't think.