Hey bud, agreed that RPG maker games have a dime-a-dozen presentation and are often host to very amateur and rusty games that aren't very unique. It's great you have a lot of specific constructive criticism and that's awesome and makes the quality of feedback better for everyone. I agree that there are many premade engine formats that saturate Itch and it can be irritating to see the same games with the same cliches here.
But keep in mind too amateur devs are at different stages of their journey and a lot of young people, inexperienced coders, writers with few development skills and others find apps like these invaluable. Accessible engines and game jams can be really great tools to encourage people to be expressive and explore creating in mediums they otherwise would have never tried. Regardless of the quality of the output, it's important to stay focused on what devs can do better in the confines of their skills/engines, because that's what'll make the difference in the long run.
Your points are completely valid! It did get me thinking a lot though.