WX86 Rediscovered for Windows NT 4 (2020)

You're not entirely wrong. I thought the same thing. The info is buried well down the page:

« Wx86 is a new component under development for Windows NT which runs most x86 Win32 applications seamlessly and unmodified on RISC platforms. »

It sounds to me like a MS version of something Digital successfully implemented and shipped under the name FX!32:

https://www.usenix.org/legacy/publications/library/proceedin...

Wikipedia has a précis: https://en.wikipedia.org/wiki/FX!32