I agree. You need to constantly inject taste and creativity via a lot of testing, feedback, and iteration.
With current technology, this still takes months to years of effort, depending on the scope of the project.
I feel that when you say AI game, it sounds like slop produced near autonomously in a single weekend.
There are other ways to fully use AI for software implementation and asset generation, but still apply standards.
One can spend a full day refining a single gameplay element to tune it into something enjoyable, or to explore and select assets that look great. This can happen with just prompting and testing.
Many skip the effort, and it currently of course results in a bad, barely working product.