Yup. It's about how easy it is.
Now, my numbers are off. They're from memory and from bias:
Say, there's a new dev. The dev can take 1 hour to make a picture with handcrafted, Daz or whatever.
Or they take 1 minute to make a picture with AI.
What do you think the new dev will do?
Sure, their games are NOT as highly rated as handcrafted.
But is their income less than 1/60th of a handcrafted? (For incomes, don't forget to compare average to average, top to top, bottom to bottom)
I can't answer that.
What I can say is that it's looking like (to me) that the future of gaming is this:
AI = Fast Food. Cheap and easy.
Handcrafted = High Star restaurant. Expensive but worth it.
Now in your city, what the fast food to high star restaurant ratio?
(I honestly don't know... but I assume porn games will eventually settle at that ratio)