If this pastor believes what he is preaching is biblical, then why did he seek counseling?
A lot of what he said was true, but it is hard to hear that from a man who is probably 40 or 50 pounds above his own ideal weight. Weight loss is not an easy thing. Some people have a high metabolism and an easy time with weight loss. My guess is this man has difficulty losing weight or just doesn't try, but wants his wife to be thin and pretty. It can be tough for some women, too as they age.
If he had said husbands and wives should try to stay fit to be pleasing to their partner, and taught on that subject, recognizing that it gets harder when you get to a certain age, I would not have had a problem with it.
Husbands should not 'look elsewhere' if their wives put on weight. Staying fit might reduce temptation, and that works for both partners. But that makes sense in our culture where thinness is associated with attractiveness. There apparently are or have been cultures where this is not the case. A teacher of mine at a Christian school said her missionary dad said fathers used to sell their daughters as wives by the pound in Egypt, and he would tease his daughters that he would not have been able to get much for them if he took them there because they were so skinny. I suspect Egyptian marriage practices were more complicated than that.
Calling this 'abusive' as the video text comments do seems a bit extreme to me. But he does not come off as a good, solid, sound teacher in these clips, IMO.
Wives also have power over their husbands body, too. Their sexual rights were established more explictly in the Old Testament.