I think it means "Don't use an Intel AX201 Wifi Card because that needs an Intel CPU" without mentioning Intel.
Have an AX200 series wifi chip on an AM4 Motherboard, works well.
Edit: Info from Intel itself https://www.intel.com/content/www/us/en/support/articles/000...
As for why they did it I'd assume its slightly cheaper to build a 2x1 chip than a 2x0 as offloading the functions to the CPU would mean less components on the card itself. When you're selling 100s of millions of them every little bit counts.
clearly not.