For the things that Intel does best (5.0 GHz boost speeds for the world's best lightly-threaded performance), Ryzen 9 3950X isn't likely to be much more impressive than other Ryzen 3000-series processors, but since reviewers will undoubtedly test AMD's 16-core/32-thread processor using some of those lightly-threaded applications, the 8-core/16-thread Core i9-9900KS emergency edition processor will allow Intel to claim a few benchmark wins in the Ryzen 9 3950X reviews that will come out in two weeks. That seems like a very sound marketing ploy.
Otherwise, someone would be saying "Hey, you could buy a $328
65 watt Ryzen 7 3700X with its included Wraith Prism instead of that $614
150+ watt Core i9-9900KS plus a $90 aftermarket CPU cooler and then you'd have hundreds of dollars available to spend on a better graphics card."
i7-9700K, NH-D15, Z390M Pro4, 32 GiB, RX Vega64, Define Mini-C, SSR-850PX, C32HG70+U2407, RK-9000BR, MX518