You're talking as if you already know the situation. But he didn't!

And Indra is talking about a time when the situation wasn't known?
How is choosing Wisdom a more logical move in the final stage, when all skills are available, except for the Path skill?
I'm not disputing the choice of Wisdom; Crazy had 2 Pandora artifacts, protected by decent guards, and he reasonably assumed that there might be magic there. I'm just saying that it didn't pay off at the time. The Pandora artifact could have given him completely useless Water or Fire, or even Air. Fortunately, there was no Expert Wisdom available. And Wisdom could have been taken later, at level 12.