I've had my digital art flagged a few times for various reasons (automatic copyright infringement and NSFW filters) -- so this is nothing new (in particular the artwork blocked the upload for some artist songs). The only thing is to have a reasonable appeal process. In all cases we got an automated approval after appeal, but it can put an untimely delay.

Honestly I hope that the AI filter would be much better in terms of false positive than the aforementioned one, if only because it should be easier via statistical methods.