Respectfully: The Firefox layout team did not have a plan to integrate Layout 2020 (we hadn't yet found a way to ship it incrementally), and doing so was never the basis of our strategy to compete with LayoutNG.
Then what is your strategy to compete with LayoutNG? A concrete roadmap would be a lot more useful than platitudes about how great the Servo team is, which everyone already knows. Nobody seems to know what the future of Firefox looks like, or at least I'm having a hard time finding that information. I don't know about other people, but I would find such a thing much more reassuring.
