That would require site owners to build sites that actually work across a large range of feature sets. Given most sites barely work in their default version, go

That would require site owners to build sites that actually work across a large range of feature sets. Given most sites barely work in their default version, godspeed on that quest. (I mean, restaurants now have QR codes to download PDF menus. Clearly, site owner incentives aren't at all aligned with customer needs)