Except the vast, vast majority of people don't care and use a normal desktop browser with JS on
People care about the downstream effects, they don't know the how or why, but they care.
I think this is particularly easy to forget for those of us living in tech hubs where everyone is using almost-new Macbook Pros and iPhone 6Ss.
I've never seen that client devs test their apps on lower end devices.
It is especially annoying if one claims to target a world audience, but expects them to have a +500$ phones and vast data subscriptions.
It seems that most 'western' sites have decided focus on people with desktops or +500$ phones and vast data subscriptions.