As a said to another commenter, this is selective bias.

Do you think a systems/application developer, who believes in those ideas, would choose to work at, or be a part of, Mozilla, given Eich's clear and verbose positions that stand entirely apart from decades of success shipping consumer applications for desktop and now mobile devices?

As someone who writes consumer applications, I want a common application platform, but I'm not going to sacrifice my tooling, work quality, or user experience to contribute to a fundamentally flawed approach, just because it's "open".