Ethically: Dr. Hyman may be right and above all, he suggests alternatives to intensive cow farming. Also, please remind that even the grass-fed animal whose meat Dr. Hyman suggests at the end are butchered, so the ethical issue is not resolved.
I do not perfectly agree with the following though:
most humans are prone to health troubles from eating dairy, so go easy.
Where is the evidence that most humans are prone to health troubles from eating dairy? Most humans of which ancestry? Japanese are surely not accustomed but Eurasian, caucasian, and northern European ancestries are very accustomed to dairy products and tolerate them very well. My body tolerates dairy products perfectly.
I agree on the last part of the sentence though: so go easy. Yes, moderation is advised and Yoga is the path of moderation.
Last but not least, dairy products are very good for vegetarians who exercise and need more protein, like myself.