There are a multitude of reasons the NYT might be biased in favor of Banksy and against SSC. But so far as I can tell political alignment is probably not the issue. Though I could be wrong. That is why I asked for clarity.
I'd suggest that you are probably dismissing political alignment too quickly, however. Even if they seem similar to you, the difference might seem important to them. Late Roman Christians fought literal wars over the presence of a letter 'i' in a single word, denoting a difference that probably wouldn't seem all that important to someone who wasn't a Christian, for instance.