One of the reasons that people are insistent is that L&P has never really given a valid explanation as to why it won't work. He's gone into great detail about the issue with "mistakes", but that's not really a great reason. Any "mistakes" would originate from his work so he can't in good-faith blame the render farm (which it feels like he has tired to do). Secondly, if he has 1,000 renders and 10% of them have a "mistake" that's still 900 renders that came through quickly- he would save boatloads of time even if he needs to tweak the 10% that had a mistake.
So I feel like you're reading his explanation very literally, and it sounds reasonable if you do. But to me, I hear his reasons and they don't answer the question. To me, it sounds like a guy trying to find an excuse because he can't admit that he doesn't want to loosen his grip on the game. I think he really enjoys the tinkering.
At its most fundamental, I think most of us just doubt that his images are really that flawed to begin with. I would like to see some of his drafts/rejected images to see the difference. But if it's anything like the comparison he gave us between 1080 and 720, I think most of us would struggle to see the difference.
L&P could be a great artist. He could have a real future doing CG artwork. I don't know if that skillset translates into making a full VN.
Let's look at two examples of someone /drawing / painting in real life.
The first is someone at a fair that has to draw a quick sketch of passer by in, lets say 4 minutes.
The second is Michelangelo painting the Sistine Chapel in what I believe was four years.
Now lets imagine a spectrum in painting / drawing in which the quick sketcher is 0 and Michelango is 100.
If you took any artist, you may not be able to give them an exact score of 0-100 on this imagined scale, but you would have a rough idea of roughly which end of this imaginary scale they would fall.
Now let's look at rendering for adult VN/games. I am not saying that L&P is the Michelango or rendering of VN, but he is clearly more towards that end of the spectrum, in part because of the time and effort that he spends on each render.
Now you have renders at the other end of the scale - lets say NLT Media who are prolific in terms of speed of updates and speed of finishing a VN. I would describe the renders as adequate or sufficient - to tell the story that they want to tell in the speed they want to tell, and many readers are very happy with stories that these renders tell.
Many developers would sit somewhere in the middle of these two both in terms of quality and quantity.
The question is not whether L&P can produce stunning renders of gorgeous women with perfect framing and light effects.
It is that whether he can produce enough renders of high enough quality to tell the story he envisages in a number of years that is a short enough period of time that his Patreon supporters are happy.
(This why L&P is very careful not to directly answer any question of how long it will take him to finish the remaining 17 and a bit playable days. He either avoids the question, does nt answer it, or goes on the offensive as a deflection strategy).
For most developers, if they had a choice to spend fifteen minutes to get a render to 95% quality, or 30 minutes to get a render to 100% quality, they would choose the former, as they know the importance of getting a story told within a period of time. We all know that L&P would spend the extra time, with ever decreasing returns.
At the rate of recent updates, I fear that AWAM might be L&P's equivalent of Beethoven's 10th Symphony.....
An unfinished masterpiece, a story of what could have been.....