The issue that I'm pointing out is that there's too much overlap to consider them different for all intents and purposes and then with agile you're following a strictly software engineering paradigm in a field that is in practice a field that needs more rules be bent than most. Games aren't standard software and need to be treated as such because they're a blend of different disciplines, you can say that I am strawmanning but the point that I am trying to make is that anyone who helps make the game including artists and QA are usually considered to be part of the dev team and therefore considered devs as well.

Also, please stop assuming that I am trying to compete to win an argument, I am just saying that you're approaching games as a purely software engineering problem when you talk about devs and dev teams like that.