Weird argument. Both AI generation and human labour can be labour-intensive, or quick/lazy/half-hearted.
If I make a simple game with a few sketches that I quickly threw together, that's not a game I put a lot of effort into, but it's human-made. I once made a game with RPG Maker for the GMTK game jam over just two days. Human-made, but also just a quick project.
On the other hand, I can make a project where I spend hours and hours a day writing prompts for images which I keep refining, and writing scripts with the help of ChatGPT, and so on. Trust me, something as simple as a character portrait can take a loooong time to make using AI if you're committed to it actually turning out well.