Nobody here has argued to start striking outdated websites off the record. However the advent of reader mode has certainly helped things in that neighborhood come through a bit cleaner.
But as yet websites don’t control rapidly evolving and privacy sensitive hardware on mobile devices. Also, user time spent in apps versus web browsers is hovering around ~90% versus 10. Might it be possible that having an up-to-date experience as it’s enforced by mobile platform owners could contribute somewhat to this abundant user preference for apps?