This is frustrating. From fhe initial framing of the article (part that's not paywalled) and the title It seems to be, for the 1000th time, insisting that reality is derived from conscious experience, but that is not how that works and people have spent decades trying to correct this misperception.
Anything that can be observable, whether it's by a person or not, totally without any reference to human consciousness, will have macro scale properties.
It started with Albert Einstein’s theory of special relativity, which showed us that lengths of space and durations of time vary depending on who is looking.
Ugh. Einstein was uncomfortable with the term "relativity" precisely because people might start talking this way. Spacetime is absolute, and the proportions of something distributed through space and through time are governed by rules that accurately predict what you'll see at different places and times. That's not quite the same as the implication here that it's just different for different people.
The hook of the article is behind a paywall so I can't see any more but it's a worrying start.