What Scott said.
Moderation. Allow reasonable amounts of soy, red meat, dairy, fish. Vary your protein sources and you'll be happier and healthier.
Extremism can get you in trouble. Example: My little brother follows a completely paleo diet. He's lost over a hundred pounds, but just had to have his gall bladder removed. I was a vegetarian for about 18 months, until my triglycerides registered 460. No that's not a typo.
Does Sears now downplay soy? I don't see it, and I don't think he needs to. Increasing his recommendation of fish oil became the emphasis of Sears' continuing research. Sears' endorsement of soy's benefits has always been a position of moderation, it seems to me; it is different than the more politcal 'meat is murder' rant of PETA and other vegan extremists.