The whole review reads like an advert.
They aren't noise isolation (look at the design) or noise cancelling (look at the specs) but in when tested the reviewer couldn't hear a thing around her?
".... and I couldn’t hear a single word anyone around me was saying, as if I was completely sealed off in a bubble of rock and roll"
Also, a review from wired.com https://www.wired.com/2016/09/review-apple-airpods/
quote: "Your $159 doesn’t buy you any better audio than you’ll get from the EarPods that come free in the box with your iPhone"
Without opening them up, I suspect they use the same driver tech as the free earpods!
I am not anti airpod. As I mentioned before. I like Apple products! (wearing an Apple watch now) If they were £49-£59 they would be worth a punt but for £159 they should have noise cancelling, noise isolation or better quality sound at least to justify £159 more than the included earpods.
It's not about the sound quality you say. Buy a pair of £8.50 bluetooth headphones from 7dayshop

It's about the brand and hey, I got the latest airpods! nothing more.