Even if the 1/600 estimate(which I'm skeptical of) is correct, it wouldn't translate to that many people having played, but that many trigger pulls. I think it

Even if the 1/600 estimate(which I'm skeptical of) is correct, it wouldn't translate to that many people having played, but that many trigger pulls. I think it's more likely that someone who plays once will play multiple times than it is for someone who has never played to start.