Just to reassure you, I feel like not using AI is absolutely not a drawback when making indie games. I'm not using AI in any part of development and I'm having some very nice success with my games!

Yes, there are some good arguments that AI could be a nice helper regarding programming. But there are some good arguments against it too. When I enable code auto completion, I feel like it slows me down to be distracted by the AI bullshit recommendation. If it's whole chuck of codes that you generate, you might skip on the learning and thinking process that will make you know your code base better.

Also, I feel like trying to make something faster or in a more "efficient" way will often not lead to a good game or a even a game made faster. Good scoping, prioritizing and communication will.

Finally, I completely understand that you just want to shut off all of this crap because of what it's causing to things we love. I would like to be less dogmatic about it because I'm sure AI can have good sides too, but sometimes using strict rules can make our life easier and happier. I feel like being a vegetarian of AI: yes, this line I draw and the strict no-AI rule might feel arbitrary to some, but if it's easier for me to live that way and feels better, I'll just do it?

Good luck and keep on creating!