Well, I'd like to respond with the fact that constantly editing and patching a basemap is a sisyphean task, to put it simple.
Regardless, I'd like to agree with you on something: The WorldA is indeed too small for its errors to be a major concern, and one may argue that QBAM is fine on it's own - and all of poor Tanystropheus's effort on R-QBAM is useless -, but after all, basemaps are a personal preference and since my preference doesn't exist as a basemap yet, I'd like to make it on my own, even if nobody will use it (though there's a huge chance that I will fail, so don't expect me to post anything about a new basemap until I indeed make substantial progress on one).
As a last note, the fact that I said patching flawed maps over and over again is sisyphean doesn't mean that your - and other patch makers' - work is any useless or bad, they are awesome and it should be respected that people are putting the effort while they could just ignore the flaws. Keep going!