While the AirPods are absolutely fantastic, very cost-effective compared to other alternatives with only a few flaws...
I think it's unfair to judge this early. Most companies haven't really gotten on the bandwagon yet. Solutions by Samsung & Sony barely have any marketing backing them; and their main competitor is the startup Bragi - that costs double the price and isn't widely known. Beats, Bose, etc. haven't even stepped into the field and B&O only recently announced their wireless buds.
AirPods will be true dominants once economies of scale kick-in and Apple is willing to pack them into each iPhone.
Competitors not having a viable product is not a reason an evaluation of products on the market shouldn't be released. Especially since it's been close to a year that the specifications have been known by those competitors. You can only evaluate products that exist or are very close to being released and sources exist about that product.
A better argument is who did the evaluation and how independent are they? I don't know anything about the NPD Group and don't know how reliable and unbiased their reviews are.