Preload example in README: why do it like that?

[mh166]

In the Optimize section of the README, the following example is given:

<link rel="preload" as="style" href="https://cdn.jsdelivr.net/npm/reseter.css" onload="this.rel='stylesheet';this.onload=null">

<noscript>
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/reseter.css">
</noscript>

I'm curious to know the reasoning behind that. I'm asking, as the MDN article regarding Link types: preload simply does this:

  <link rel="preload" href="style.css" as="style">

  <link rel="stylesheet" href="style.css">

So the MDN example neither utilizes an onload script nor a <noscript> tag. Functionally, both seem to be equivalent from what I would assume. Is there any benefit to choosing one over the other? Or is it just a matter of taste?