An ecosystem based solely on apps built on a web framework was and is, overly optimistic and flawed. It's just not where most developers want to be, nor does it offer the best of breed solutions the same developers have been offering on iOS for example.

As much as Google and a couple of others want to push the web, it is not the future of all apps.

But I don't think that had anything at all to do with the failure of the brand and platform.