You know, it really gets annoying with people nowadays complaining about stuff like this ^^. What does it matter if a cow is pastured or fed grains? if the cows couldn't tolerate it, it would certainly show.
Cows live, eat, die, and then we eat them. Just like humans(minus the eating part.) Same thing with people who argue about High Fructose corn syrup. It ONLY matters what the macro breakdown is.
If you eat corn, its sugar.
Bread? It's sugar.
Oats? Its sugar.
Fruit? Is sugar.
You can argue the GI of all of these if you want, but in the end, its fast carbs. And you aren't going to grow tits from a lil' soy here and there.