Why should I care what code OTHERS decide to present to the world?
I dunno, because it's executing on your computer?
Except that all of those thing either don't apply to web apps at all, or apply to all web apps. There's nothing to install, upgrade, or fix locally, and you're dependent on some service provider regardless of the status of the code.
That is exactly his point -- and the fact that these limitations can be worked around.
Who tought of that name anyway? Yeah, we have a planet, let's call it "dust", or "dirt". Yuck. We can call it Vulcan (because it has a lot of vulcans, you know, and it had even more so times before) or "The Blue Jewel", or "Water drop", but no, we called it "Dirt".
What the gods would destroy they first submit to an IEEE standards committee.