I think they don't allow ai, cus it's stealing other peoples work. code is just math problems, and you can't steal a math problem
Brother we are programmers we steal code. If I'm being honest coding is kinda done for, Prompt engineering is the new path for us programmers. And I think most of these rules mean no AI generated content as in art, music etc. I don't know if you asked people what is the content in a game if they would say Code.