The blog post's image on a child's struggle is kinda sorta one example. It shows the pencil at the last stroke of the bottom right character and that stroke order is wrong. Correct stroke order is shown here: https://en.m.wiktionary.org/wiki/%E6%88%90

To answer your question, if the image doesn't show the pencil positioned on that last stroke, I'd say that the characters don't look right and may infer but cannot tell for sure that they were written using incorrect stroke orders.