You either have never tried a ThinkPad prior to the W530 (i.e. more than 10 years ago, when they significantly changed the keyboard for the first time) or you haven't used one of the "next-gen" models with "next-gen" keyboards that they have been building ever since and that get worse with every iteration.
I have used as far back as 15 years ago, have a back up one that is 5 years old (?), privately a X1 Extreme Gen 2 and a company L13. No significant difference in keyboards, all of those are, or were, great. Especially compared to HP or Dell. Not to speak about Asus...
I agree; the keyboards are fine. I do dislike the layout changes they've made compared to the "classic" keyboards, but it's still better than most layouts out there (and they fixed some design mistakes in the first iterations of it).
I honestly thought this to be true years ago. I recently bought a MacBook and am completely sold on their keypads. Wouldn't be happy if that was my desktop keyboard but for a laptop it's the best out there.