But copying an existing game is not solving a real world problem. You may do it to see if "I can make it", during a learning process, or as a challenge. But when you ask something/someone else to do it for you, what's the purpose?
And what's it matter if someone else made it? Do you make your own bread or milk your own cows? Do you build your own cars?
Like who gives a shit, when the most important thing for 95% of people is, "Can i use this? Can I operate it? What can this do for me? How does this make life easier/better/fun?".
It's also interesting as it shows the reality we're heading towards with hyper-personalized media. Love it or hate it, it's coming.
About your last example, it's like asking a AI to write Harry Potter but where the character has a different name and be blown away for what I did in a weekend!