I tend to agree...for the most part...but, then again, (as 420 says) I've never talked with a deer before. I think one factor is how close you need to get to an animal to kill it. If it's 75 yards or more, then maybe you can smell like a hobo and be okay, as along the wind is in your favor. BUT, the wind isn't always consistent, is it? Sometimes it fluctuates in its direction, and in THOSE times, I think your chances are better if you don't smell like hell. I think moderation is the key. In other words, I don't think it's a bad idea to wash your outer clothes in Borax and Arm & Hammer and keep them in some type of container to keep them from smelling like the hamburgers or pizza you cooked the night before. I also don't think it's a bad idea to shower with unscented soap instead of using Irish Spring.
But I would also AGREE that a lot of the scent control products are marketing hype, because I think that if a deer can smell you, he can smell you. I think the issue of them being alarmed, etc if they catch wind of you is HOW MUCH they can smell you. I don't know if they are more or less alarmed if they catch a little bit of man scent vs catching a ton of STANKIN' man scent. I'd like to think more alarmed if you're stinkin', but maybe not!!