Has nothing to do with being "intelligent".
Do you know exactly what he (or any receiver) is supposed to do on every play? If you don't know the exact play call, you don't. You don't know if its a combination route, or if he is supposed to be running the route he is supposed to be running when he sees a certain coverage, etc....an audible....etc....the variables here are practically endless. You are only guessing, and THAT is what makes people look stupid. Period. I've heard coaches point this out many times to idiots in the media dogging a players "route running" and it holds true for internet forum posters too.
Unless you (I'm speaking to the broader "you" of anyone posting on the internet) know what is called in the huddle, you look like an idiot talking about it because you in fact cannot prove anything you are talking about. Just making %$&# up. If so, prove it....but..... we already both know you can't. Unless you have access to the Rams playbook and audio of the calls in the huddle that we don't know about.