What makes you believe the GP is correct and whoever wrote that in the article is wrong, or that either are correct?
> My knowledge comes from someone who helped develop Dolby Digital on film so I'm pretty sure it's correct.
That is certainly better information than anyone else here has, and you seem to actually understand the technology. I wish HN was 90% comments like yours and almost none of the rest, especially Wikipedia!
But while we're talking about epistemology! Decades-old memories go wrong, and when vested interests are involved the memories can drift to desired beliefs or familiar narratives. That doesn't make the comment a bad one - it's very valuable, actual knowledge. But it's not sure to be correct either, and/or not precise.