No he did not. You're trying to put words that he didn't say into his mouth. Let's concentrate on what he did actually say.
Look, either he committed blasphemy or he didn't. The real question is: why should it matter?
Whether he said "God IS petty" or "such a god WOULD BE petty" is completely immaterial. He has a perfect right to say either of those two things, and so does everyone else.