I don't understand how that damages the analogy. The point of the essay is that an environment where you have to grow fast or die makes it better to overspend

I don't understand how that damages the analogy. The point of the essay is that an environment where you have to grow fast or die makes it better to overspend on some things than to waste time trying to bring the price down. If that's valid logic for an unprofitable company, it seems it should make even more sense for a profitable one.