5s is a pretty shit standard to set and in general customers or visitors that you lose to poor website won't tell you about it unless it directly impacts them. Also laughable that 5s should somehow become more acceptable even though we have better tools, faster networks, and faster hardware on all fronts.

It seems like your argument isn't that it's fine across the board, but rather that it's tolerable in a few circumstances. If I try and load a website that is packed with features but loads slowly and maybe has a choppy experience, I'm going to go somewhere else if I can. It's only in the few circumstances that you can't go somewhere else will you be relatively fine.