Yup. The reality is, most games people are playing on their new consoles can be played on PS4/XBO.I think he meant "Next gen" exclusive, but even then, there are two (great ones): Astrobot and DeS.
You don't need to explain the appeal of a new console to me, I post on a gaming forum. But "system seller", "killer app" are terms that exist for a reason. You used to need... well, "system selling" exclusives to move consoles, and looking at the NPD data we know Demon's Souls is not what is moving PS5 systems.