I agree with your general sentiment here (that such an arrangement is not trustworthy enough for me to feel completely private) but your delivery of said sentiment is really fucking rude, dude.

Even if it's not secure enough for you or I to feel private, it likely exceeds the security necessary to satisfy most people's threat models so they can not only feel private but objectively be more private than if they just used Google docs.

incremental or opportunistic privacy improvements are better than none, a fact that has seemed to be lost in elitist privacy circles these days.