"Sam Altman, president and co-founder of Y Combinator." Uhh, they clearly didn't do their homework if they thought Altman co-founded YC.
And they get the more complicated facts wrong much more often, but that is because they generally directly printing either what the founder tells them or something they think that is more interesting than what the founder tells them without any sort of verification.
Basically, almost all articles about startups (and frankly most things in general) are written to be interesting, not factually correct.