Actually it is very unprofessional and deceptive to quote some unnamed "scholar" to support a key doctrine of the WTS. They do it often.
With the internet, it has become quite a bit easier to identify the 'unnamed scholar' in many cases. What I find very interesting here is the person quoted to support a key part of their doctrine has strongly come out against another cornerstone. I find this similar to one of the folks who the WTS quotes very frequently in the Trinity brochure to support the non-existence.....I believe it was Arthur Weigall, if one does any looking into what else this gentleman has written, you find he is very anti a lot of the basics that the WTS (and much of mainstream Christianity) teach as truths...at least in the Trinity brochure one is provided the name of the person and the publication...