Sounds like he made a mistake and is paying for it now. If he really wanted a simple life, he should not have published a game under his own name.
It's a big pain in the ass to register an App Store account as a company vs as an individual. Especially if it's something as small and casual as this.
It may be a pain, but the game is generating a lot of attention and money. The prudent choice would be to release the app under a company's name. You can't have your cake and eat it too.
It became popular after the fact. He wasn't expecting to become this popular by a long shot. By the time he was starting to get popular, it was too late.