It is interesting to think he started SAO because his Fate games were not popular. So instead of continuing, he decided to make something new. Credit where it is due. He improved immensely since his Fate games. I have high hopes for when he starts making those game he will make them the same quality as SAO.
If you want Inoda to suffer more, then imagine him being a overweight adult. Now he has diabetes and had to amputate a foot.
He should take a break after finishing SAO to recharge and reset himself. I am sure a lot of supporters will be okay with this especially if finishes SAO with a lot of people happy.
Personally I hope when he finishes SAO, he changes his payment model. Instead of getting monthly payment, we make one lump sum payment for the complete game so he can give updates without being stuck with the monthly release schedule. Gives him more freedom to release at his own pace and no need to make sudden changes from feedback. He should have built up enough trust for that to happen then.