If there's a complaint to be had here, it's that the HN poster changed the word "did" to "do" in the headline while posting here.
Well spotted! That's a pretty misleading change.
> By Christian Jarrett
> The idea that we learn better when taught via our preferred modality or “learning style” – such as visually, orally, or by doing – is not supported by evidence.
Specifically, x is "when taught via our preferred modality", and y is "we learn better". The first sentence of the article gets it right, but the headline is where the false leap of logic occurs. Perhaps the headline-writer is a different person to the article-writer.
Edit: As pointed out by sirclueless, the headline was further distorted by empath75 when posted on HN.