Because the burden is on the one making extraordinary claims.

Which, of course, is you. Not only are you the sole dissenting voice in this thread, you disagree with the article, and the broad consensus. While there are plenty of cases where a thread, an article, and a general consensus are all wrong, you have absolutely no ground to stand on to claim that everyone else's claims are extraordinary and your claims require no evidence.

Prove that sugar causes weight gain or stop responding with nonsense.

Good talk.

You played yourself.