I actually really LIKED that fitted sheet folding lesson, as someone who both can make the fitted sheets look like flawless from the package and as someone who really really cannot be bothered doing it because life is too damn short.

Specifically I liked it because it's less effort than the actual proper way and yet at the same time results in a neatly folded bundle that works for her specifically-designed-to-look-nice system - basically it's very efficient and happy to sacrifice The Right Way for practical results. Which is what a lot of people really NEED, in this field.

Mmv, but I doubt she's unaware of The Correct Way - she just doesn't find it useful.