However after some further thoughts, I changed my mind:
I've played Worms before. He pretty much copied the entire game design from Worms. So basically, he didn't even create the element that attracts the users in the first place.
He was smart to create a Lite version, so maybe he is intuitive about marketing. That's hard to say from one example.
He got lucky, but didn't realize that he did (apparently the app store environment is rather arbitrary). He thinks he has lots of talent at things he didn't design, so he went all-in by quitting his job. Now, he spends his afternoons watching Judge Judy (or as the article says.)
Yes, he knows how to write code. That's about all I can infer.
On top of that, he makes rash decision, lacks hindsight, spends his afternoons doing useless activities.
Now I don't know him. I'm sure he's a good guy. I just think the publicity he got was rather negative for his future.
I'd think twice.