That's not the impression I got. To me it sounded like he was hoping to earn money from it. He said the same thing about his youtube channel, which also seemed very unlikely.
He’s been friends with most of the most successful indie developers in the iOS world - his cohost Marco - do you really think that Marco didn’t help set realistic expectations?
Well clearly he didn't, or at least it didn't help. Did you hear Casey talk about the app? Very unrealistic. Plus Marco didn't even test the app before it was launched, so I don't think he's been very involved. To be honest their friendship looks very asymmetric.