I don't see much connection here between miss BS and semiconductor physics.
It's just a physics book that happens to have pictures of the popstar in it.
It’s a 25 year old joke. It was a simpler time.
But what's the joke though?
It’s called absurdity. It’s funny because it’s obviously not true, and also funny because of the undertones that it’s a clever way to get horny teenagers to study physics who really just want to see the photos.
It would be absurd if pop stars by defintion could not explain semiconductor physics. Like how a snake wearing boots is absurd.
You are being pedantic, but I’ll play along. Absurd has multiple meanings. It can mean nonsensical, but it can also mean utterly ridiculous or silly. Under those other meanings I believe the pop-star-physics-professor still qualifies.
It sounds pedantic, but "absurd" is fundamentally different from "rare". A lot of baggage comes from flagging something as absurd, instead of just unexpected or uncommon. Winning the lottery isn't absurd, having 3 pairs of some chromosome isn't either, and being a successful pop singer with an academic background isn't either, it's just rare.