So, your approach is to hope that people will pay extra for something they don't want, because you said so.
Why do you need DJB's jabbering for that? You can just demand they pay extra for IPv6. Call it "Super Internet Plus" if you like. Go lobby your representative. See how much that helps.
The idea that because something is "part of" IP therefore it works on all the network gear people are buying? Just more proof you're completely out of touch with the real world. It is completely _normal_ to have stuff that doesn't work. Most of the time there's a config switch, the default is conservative, everything else is a lucky dip. All the features that deviate from the most basic processing of unicast TCP traffic are in the lucky dip category. You know Intel shipped a whole stepping of i386 that can't run protected mode Windows? That's the whole point of the 386, and it didn't work. Vendors have shipped whole families of products where they know there are features that just don't work. But "Oops, yes that is a bug, we'll let you know if we can fix it in firmware" is a lot better than "No, we can't deliver that feature, we won't bid". Nobody is going to sue - network admins in big corporations (especially big tight-fisted corporations) are used to being disappointed.