You're just not getting my point.
The question is why there are so many bad rpgm games compared to renpy.
Read again my post above especially the last paragraph.
It's simple enough. If the presumption of Renpy would be making an RPG game, you'd be seeing more bad Renpy games because additional dev'ing adding combat/maps/walking/balancing/stats/interaction with the world, etc. etc. etc. is much harder than just show text and picture. The threshold for a good game would be much higher resulting in lots of failures or "bad" games that do not meet the acceptable expectations from this type of games.
And I disagree with the notion that there are noticeable more bad RPGM games compared to Renpy games out there. I've played my fair share of both types of games and would say that in both cases the mediocre tend to dwarf the truly outstanding games, but there are more outstanding RPG's than VN's. But in the end of the day, that's purely subjective, like I said in my original post.
Your main argument is that RPG's are harder to develop than a basic Renpy VN because of the additional mechanics involved and I don't disagree with basic notion that the mechanics are more complex, they are. But it isn't really hard to get a hang of RPGM scripting, even if it's more complex than basic VN scripting, that was the whole point of the original quote of me that started this argument.
Besides, here comes the scolding hot take: Once you've completely familiarized yourself with the RPGM engine, it
might in some cases actually be easier to create a good game with it than with Renpy. Why? Well, a basic VN pretty much lives and dies by artwork and writing. If one of them or, god forbid, both are lacking, you're probably fucked as a dev.
An RPGM game on the other hand can have the most generic "hero saves princess" scenario, with fantasy writing for dummies dialogues, and still be pretty enjoyable, as long as the gameplay is good.
So while it's true that an RPG can easier fuck up when it comes to scripting and the dev not properly implementing mechanics, a VN can easier become unplayable (alteast for me) when it comes to the creative writing and artwork (of course, lets not kid ourselves, the games we're talking about here also have alot riding on the quality of the porn).
Look, maybe it's just my bias: While I like a good VN, I just prefer the medium of RPG's, and that's why I probably give devs of the latter more slack if they create something that you yourself wouldn't call good. So that's why I don't agree with the idea of there being generally more bad RPG's than VN's. It is what it is.