Indeed, one can only wonder just how much backroom shenanigans must have been going on, or how deeply the TMSC order book pipeline must have been blocked with lesser chips.
I absolutley adore the Cezanne 5800U notebook I own: It puts everything Intel 14nm to shame and hardly ever breaks a ...fan (ok, my 5950X ain't bad either, but it does require a Noctua to keep quiet).
No, even an RDNA2 iGPU won't likely convert 15/28 Watts TDP into a gaming console, but who won't take the extra iGPU punch, if it came for free, and including tweaks in general power management, right?
I can only conclude that there is absolutley nothing wrong with that chip's design, but tons broken with how worthy chips get allocated foundry capacity.
Luckily, I don't think that it will break AMD's back, because the R6000 are little more than a shuffle of assets that AMD already monetized elswhere (including the Steam desk...). But darn, wouldn't I still like to have one of them, if my 5800U wasn't already much better than what I need for most everything I use it for.
And for the other stuff, I got them big iron with near Kilowatt dGPUs anyways...