There's a lot wrong in such a small comment. First of all, the entire point of the article is the "hypothetical reason why...". Even if you didn't read the art

There's a lot wrong in such a small comment. First of all, the entire point of the article is the "hypothetical reason why...". Even if you didn't read the article, the title is pretty suggestive. Secondly, it ought to be intuitive that just because you get "enough oxygen" doesn't mean you aren't getting other things as well.