I actually don't think it's a bad take. Everyone theoretically falls somewhere on a spectrum of "optimum sleep requirements". That's a given. What I take from the advice is that you may be well above your optimum. In my experience, it's easy to get in a habit of sleeping beyond what's needed. I, for one, feel terrible all day if I let myself sleep too long. Waking up earlier is harder, but my body consistently feels better for it. YMMV.