The universe works in mysterious ways. It finds ways to send us hidden messages, or little signals pointing us in the direction of what we should do with our lives.This is one of those instances. These guys were meant to find each other. Maybe they are supposed to save the world together. Or maybe they're just meant to open a vape shop together. It could be anything, but there is no doubting their bond.
I wonder if both of these shirts were just happy mistakes that happened in the same factory and then they just decided to go with it. The sewing team got confused on which arms went with which arms, or maybe they hired blind sewers. I respect the inclusivity of that choice, but then you run the risk of getting mix and match shirts.