I'm not really interested in debating the reaction of an imagined Haskell programmer. I was just restating what the grandparent's analogy meant.
Your question is fine, but not what he meant by the analogy.
I'm not imagined, I am real. I know you were restating the analogy, the problem is that the analogy is wrong. I can't find anything about APL that a haskell developer would find new or interesting or frightening or anything like that.
And says "what's the big deal?". That's exactly the question, what is the big deal. APL isn't scary, I'm not shouting "I can't make sense of this", I am asking "how is this better than haskell in the same way haskell is better than java?".