That's not a simple regression. That's creating a model based on your own opinion of what matters.
Litecoin doesn't have any real first mover advantage either, except by being first to be the second to become big enough for you to consider it worthy of excluding. Say what?
So basically "makes no difference at all" is just something you made up.
I stand by that. Arguing that bitcoin and it's clone have the biggest market caps *because* of their distribution model is crazy; for a long time there were no alternatives, that is why they have found such a following.