I'm just going to point out that it isn't actually a binomial distribution since there are (at the very minimum) 3 outcomes when it comes to platoon advantages:
- Friendly team has the platoon advantage
- Enemy team has the platoon advantage
- There is no platoon advantage
Given that you are only doing a binomial distribution of the matches where there was a platoon advantage for one team or the other, there is potentially a quite sizeable source of error in the form of all of the other matches you discounted due to the lack of a platoon advantage. Additionally, since you do not differentiate between platoons of 2 or 3 players or platoon advantages of +1 or +2 platoons, these are also potential sources of error (e.g. does 3x 2-player platoons vs . 2x 3-player platoons count as a platoon advantage for the team with 3 platoons despite each team having 6 players in platoons?).