Maybe not, but it stretches credulity that they have absolutely no idea, not even a guess, as to the cause. The ban letter says they previously received other notices. Where are they? And what steps, if any, did they take to resolve then? They don't even describe their app, which ordinarily would seen like the first thing to do to establish the injustice of the affair. "My app just makes generative cat photos. What's ban-worthy about that?"