When I heard the rendering was bad, I did not know what to expect.
I don't think it is just that the dev did not check for obvious details. It seems that the dev does not really understand how to make a render at all, and does not even seem to know how to make sprites. That is about as basic as it gets.
This game should never have been released it this condition. It is very difficult to recover from a bad reputation.
This game is going to get a bad rep fast, if there are not some major changes made, like quality control.