No it doesn't, however I have seen the proper solution (which points out the problem) a few times.
However the page has a few more problems, like the ones you discuss, which is why the link is a little better than just dropping an image.
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So far I have only seen the wrong reason. Although this is a nice video
The explanation is incomplete.
The suggested reason in this video is also incomplete (she is not very clear in saying if she is anwering the question or not)
I am pretty sure somebody out there must have a written nice explanation for it. But it most likely drowned in incorrect/incomplete answers