I think it's right on the money. The Web has long sucked even for presentation, let alone for application delivery. It's not that you can't do it now; but it's still a hack upon a hack.

I also don't think the longevity of Web sites will necessarily continue. The earliest sites will render today, but will the same be said of today's "single-page-application" sites that rely on scripting?

And finally, I think the LaserDisc comparison is dumb. LaserDiscs from the '70s were playable through the format's demise in the 2000s. "Coding" for it... makes even less sense.