That gets onto a major tangent, namely the fact that the web took over as a UI due to the incredible pain and security nightmare (bad isolation) of shipping and

That gets onto a major tangent, namely the fact that the web took over as a UI due to the incredible pain and security nightmare (bad isolation) of shipping and updating native apps. The web was a way to avoid the hell of installing a native app, so the web won. This is (still) a problem with OSes. Mobile improved the situation a bit but not really that much. I am now reluctant to install mobile apps since virtually every mobile app is a potential vector for who knows who to spy on me. Mobile apps are isolated enough that they're unlikely to trash the device but they still have huge security isolation problems. TL;DR: endpoint OSes suck so the web won in spite of being a crappy UI platform.