Respectfully, and not to start an argument, but I think you don't need to defend the artist or say people shouldn't comment if they want to criticise. I don't think artists who do this stuff care if people think it's pointless or bad. That other people can enjoy it at all is something. Artists who created things this big aren't overly sensitive people, if they were they would have stopped decades back, after the first thousand people said it was an expensive waste of time. So I think people should be honest and say if they think it's crap. And the artist may get a kick out of it, or not care. Likewise don't say nice things about it if you think it's crap, just be honest.