A friend recently alerted me to a critique of Ken Wilber she had seen at a blog calling itself The Zennist. The post in question does not specifically mention Wilber, or Genpo, or even Eckhart Tolle, but rather takes broad aim at "Modern Zen".
There has always been only one way to study Zen: find a real, live, flesh-and-blood Zen teacher and study with that person. The definition of a Zen student is someone who studies under the direction of a living, breathing Zen teacher. And the definition of a Zen teacher is someone who has studied with one or more Zen teachers until being given authorization to teach Zen (by one or more of those teachers).
This is not a personal opinion of mine, it is simply a well documented historical fact that this is how Zen has always been studied and taught. An excellent source of information on this subject is the book Zen's Chinese Heritage by Andy Ferguson, but the same information can be found in any well written book on Zen written by anyone who has any idea of what they are talking about (such as the many books written by Steven Heine).
"The Zennist", however, proposes his alternative to "Modern Zen" with these words of wisdom:
For all of you Zen romantics who refuse to go along with this you have only one course of action to take, continue visiting this blog and other like blogs and Internet sites that teach about something other than the moment, for example, the Buddha Mind, the Unborn Mind, the One Mind, the Dharmadhatu, the Tathagatagarbha, or the foundational Buddha-nature.Learning about Zen from "blogs and Internet sites" is like trying to learn about oceanography by watching Bay Watch. In fact, it is worse than that, because at least when you watch Bay Watch you will see pictures of an actual, real ocean.
Please do not take my word for it, though. Distrust and verify.
It is pointless for you to praise a maiden to the ears of a young man and describe her in words in order to inflict upon him pangs of love, when you can bring her beautiful form before his eyes. Point, if you can, to her beautiful form, then you have no further need of words.