Abject fear. They are afraid that the best option will go away. They're afraid that their perfectionism and critiques have driven it to a point of failure. They

Abject fear. They are afraid that the best option will go away. They're afraid that their perfectionism and critiques have driven it to a point of failure. They're afraid that a project is big as a browser can't really be open source. They're probably also angry at the squandering of resources at Mozilla particularly on executive salaries. But yeah it's ultimately fear.