I agree that this is impressive, but remember that you get to cheat: You build the thing, measure how far off you are, and stick delay lines in the short branches until everything lines up. Admittedly, if you're off by a hundred meters the required delays would be embarrassingly large, and the architect would get teased a lot, but even then I don't think it would pose an insurmountable problem.

Meanwhile, if the essence of your argument is that Lisp was used by mainframe guys and wasn't pushed hard enough in the microcomputer world, I can't help but agree. God, if only I could travel back in time and replace all those useless Pascal books I read as a teenager with Lisp books...