Greger is my guru, so I tend to go with his stance on most things just because of how thoroughly he researches everything. ;) I think it is like most things, as long as you are not eating it in excess and making sure to choose organic, non-gmo sources it should not have any negative health impacts. The biggest issue with soy is that the processed forms (like soy lecithin or isolated protein) are in all kinds of junk packaged foods.
I would be willing to bet that some of the "research" against it is funded by the beef council because they are scared people are ditching meat for plant-based proteins like soy or beans. Or the other problem with a lot of the nutrition research is that it isolates a specific compound found in a food and doesn't look at the impact of the food as eaten in whole food form. I generally keep my consumption to 3-5 servings of soy a week (sometimes more, sometimes less), but I think my body actually feels really well when I incorporate it regularly. Just my two cents, but everyone has to decide for themselves what works for them as I know there are some people who really are sensitive or allergic to soy consumption. Luckily there are plenty of other delicious plant-based protein options. :)