An apostrophe completely changes the meaning of what is said. It can make those with at least a primary school level education do a double take, that is the problem. Considering said apostrophes were, for the most part, used correctly elsewhere, I figured they were simple typos. It was just advice to improve a rather thorough guide, nothing more. I'm not very worried about it either way.
obviously not a big deal if you had to revive an almost year old thread to correct it amirite?