This doesn't make any sense at all. The bond with Hestia can literally have zero negative effects on Hades for the simple fact of the matter you made him immune or unaffected by literally anything he thinks or views as negative. So severing the bond was just to what? Make Hades edgy?
You literally had him use his second wish to prevent himself from being manipulated in any way he finds harmful, that would include from having a bond with Hestia, so removing that bond is useless
did i get it right? He jump into another world and left his sister alone? Inside the stomach? oO. I agree - this MC is a real pinnacle of the Greece Gods. In a negative sense.
What pathetic thoughts, men who run away from their problems are cowards and Hades is not a coward, you are damaging the image I have of the best god in Greek mythology.
So you wasted your 2nd wish for nothing, also Hestia if wanted to could become one of the strongest gods. Also having a good bond with her would be beneficial. L take from the author.