Could you elaborate on that as i am confused as to how you have come up with this conclusion.
I have a nice 1080ti, i dont stroke it ... thats a bit odd but i am happy it still can go toe to toe with Nvidias latest top end cards... the 2080 which is very expensive and lacks the ram...ohh and doesnt seem to be too stable but hey.
Now i do get the .. vega 2 is a bit meh type part, but lets be honest here - a well priced 16Gb 1080ti/2080 competitor.. maybe even a smidge faster (perhaps) is not... crap. if it is crap then so are the 1080ti and the 2080.. and the ultra expensive 2080ti which is not a massive amount faster than all three of then is also not what i would call a slam dunk either.
As for the 9900k being faster than zen2... i watched the stream, i presume it was the same one you did. i did not see any 9900k being faster rubbish.
Do you mean your 9900k is faster at boiling water than that demo'd zen 2? well it prob is, its prob faster at melting titanium as well..
I did not see a 9900k being faster at cinebench which was the stated demo.
Now you might mean, ohh my 9900k is faster because i have clocked the snot out of it... ok i get it. but then your also up against what is more than likely a lower clocked ES mid range chip on an pre production bios ect... ohh and of course your using the same amount of power as a million "marital aids" on full blast to do it.
I however see a lot of clutching at straws from some regulars.. which never surprises me.