In the article they state:
Using trigonometry, they had to create a new proof of the Pythagorean theorem, the 2,000-year-old rule that explains the relationship between the lengths of sides on a right triangle. No one told the teenagers that mathematicians had long considered this task “impossible.”
and THEN casually mention:
Two people had previously proved the theorem using trigonometry: Jason Zimba in 2009 and Nuno Luzia in 2015.
WTF?