+Randall Lee Reetz
Maybe hold off on calling other people idiots, since no food labels use "teaspoons" as a unit of measurement for anything. I just looked at a can of coke, and it says 42 grams of sugar. Here's a video showing 42 grams of sugar being poured onto a scale: https://youtu.be/m_31y-scnBQ
Eyeballing it, what's in that bag might be a little more than what's on the scale, but there's no way to tell for sure. Also, given that HFCS is sweeter than sugar, gram-for-gram, the person who put this together may have calculated an equivalent amount of granulated sugar to equal 42 grams of HFCS.
Not only is it not definitively wrong, it's not even close to being as far off as you claim.