I am in Dev, He is a BA. He is indeed very busy, but the description in the ticket is missing a lot of info and I didn't quite understand it. So, I asked a few questions to avoid having to ask him later on.
I think in gerenal he is pretty nice. That's why I am kind of supprised seeing that sentence. I'll just ingore it and don't let it bother me any more.
Thank you for helping me cope this problem.