haha sure man! Here are few points to keep in mind..
1. The guy is good looking( not everything but it helps).
2. How many times out of 10 can he do that?
3. You think that is a solid number? After he leaves, many thoughts might come up to her mind about what just happened and then flake on him.
Pickup is simple, sure! But the reason why everyone learns it here is because there are infinite ways the interaction might go and you want to be your better self in general.. Besides, most people including me want to increase the probability of success in general! I took numbers of gorgeous women when i first started very quickly but most of the times they flaked on me. What kind of impression did he make on her? Direct, and confident YES! but he always gave her the impression that he might be doing this on tons of different girls and she might not be the only one! No one wants to feel that way! A bit over analyzing here but to get back to reality this doesn't happen all the time
You should know by now that numbers means nothing anyway.