I think I mostly agree, except to say that I think something can be both a social strategy and a cognitive error. The question is whether that social strategy actually leads to the outcome we want, if not then I think it's fair to call it a cognitive error. Arguable all cognitive errors are social (or just general) strategies under certain conditions.
Thank you, this is my first real piece of for fun analytical writing. I pulled this from my Medium, so looks like I need to check for errors more carefully next time.