Nope. They said "The thing is that you don't have to assume that they need magic to do whatever extraordinary, supernatural things they do." There is nothing explicitly in the post to say they're talking about literally anything.
You can choose to read that to mean they're talking about literally anything, but again that would be incredibly uncharitable. It would like saying that "because it's magic" is a reason you use to explain why wizards can do things that you must believe that 1st-level wizards should be able to create entire universes with their spells. Because it's magic, and you didn't expressly indicate any limitations.
But that would be a ridiculous and unfair interpretation of "because it's magic", even if it could literally be interpreted that way. That's the point - you shouldn't interpret things literally, you should consider the context of the discussion. Using literal interpretations only harm discussion.