Think how many game developers were able to realize their vision because Unity3D was accessible to them but raw C++ programming was not. We may see similar outcomes for other budding artists with the help of AI models. I'm quite excited!
There's Genshin Impact, Pokemon Go, Superhot, Beat Saber, Monument Valley, Subnautica, Among Us, Rust, Cities:Skylines (maybe), Ori (maybe), COD:Mobile (maybe) and...?
You could say the same about books.
Lowering the barriers of entry does mean more content will be generated and that content won't the same bar as having a middleman who was the arbiter of who gets published but at the same time, you'll likely get more hits and new developers because you getting more people swinging faster to test the market and hone their eye.
I am doubtful that there are very many people who hit a "Best Seller" 10/10 on their first try. You just used to not see it or ever be able to consume it because their audience was like 7 people at their local club.
Which suggests even after several iterations the vast vast majority of folks are not putting out anything noteworthy.
Cuphead
Escape Academy
Overcooked
Monster Sanctuary
Lunistice
I'd say all of those do some major thing that makes them stand out.
Angry birds, Slender: The Eight Pages, Kerbal Space Program, Plague Inc, The Room, Rust, Tabletop Simulator, Enter the Gungeon, Totally Accurate Battle Simulator, Clone Hero, Cuphead, Escape from Tarkov, Getting Over It with Bennett Foddy, Hollow Knight, Oxygen Not Included, Among Us, RimWorld, Subnautica, Magic: The Gathering Arena, Outer Wilds, Risk of Rain 2, Subnautica: Below Zero, Superliminal, Untitled Goose Game, Fall Guys, Raft, Slime Rancher, Firewatch, PolyBridge, Mini Metro, Luckslinger, Return of the Obra Dinn, 7 Days to Die, Cult of the Lamb, Punch Club.
Many more where those came from