I thought so too.
What's the CV of the Orthodox Theologian quoted, do you know?
No .. I do not.
I did an internet search and he appears to be well thought of, but I also thought Meyendorff was well thought of as well and I am apparently wrong.
I think maybe he would be one of those "not truly Orthodox" fellows which the article references.
Here's just one brief bio, the web is loaded with his stuff.
http://en.wikipedia.org/wiki/Vladimir_Solovyov_(philosopher)