No, they’re not, and I’m not going to get into a silly semantics contest. They’re mocking what they imagine God to be. One might as well be a child mocking the dark.
This isn't a "silly semantics contest". Let's see if an analogy helps. During the Cold War Soviet propaganda mocked the USA. It could be argued that the purveyors of such propaganda didn't understand the USA, and were simply mocking what they imagined the USA to be, but they were still mocking it. To say you can't mock the USA is absurd, just as it is to say you can't mock God.