What you’re doing is like trying to cut a steak with a spoon and saying that it’s no good because you can’t use it as you expected. This is not a system integration, so your comparison isn’t valid. Take these for what they are, inference models. Please focus on the bold.
Lastly, you don’t need to be a Photoshop expert to fix the images. Even Paint today has AI tools that can help you with that. I’m not sure if you want to address your issue or simply express your frustration, though.