"This moment has been brewing for years now, and the new Apple Silicon is both shocking, but also very much expected. In the coming weeks we’ll be trying to get our hands on the new hardware and verify Apple’s claims."

Anandtech doesn't have the ability to say either way since they are also going by the marketing data ... once they benchmark it for real then they'd be able to prove either way, but your statement is premature.

Will the new Macbooks with M1 chips compare favorably against Intel laptops with low power and fanless designs? Yeah.

Is the existing A14 chip faster than than a 10900k (even in single threaded performance)? No way. There is something in the benchmark that is messed up to the point where you can't compare them.