I believe that was meant as a punishment, possibly the chief goddess thinks that a world without a divine superviosr is hell, but he won the lottery for the body he reincarnated.
If it was on purpose the punishment was giving him a happy life and then putting him back on in a chimera body that will die if he interacts with others.
Or she discovered he realized what a good life is and made so people would dodge him, in all races, hence he can't repeat the dream.
I'm more interested in MC words of the demon lord behaving like his father, and MC is very special and his sould didn't break through dimensional hoping and multiple cheats forced on him...you guys get what I'm hinting at?