Zuthal
Since in basically all jurisdictions “innocent unless proven guilty” is a core maxim of the legal system, the inherent ambiguity in feral art should be an advantage - as long as the artist claims that the animal in question is sapient, or makes no claim either way, it is basically impossible to prove that a situation that would be called bestiality is present.
And aside from any legal discussions, I do not think art should be policed in general. It is fictional, with no involvement of, and thus no harm to, real-life animals (or humans, in case of e.g. snuff art or noncon content that depicts things that would be illegal to do to IRL humans). Of course stupid laws exist, but those laws should be changed - and what should definitely not be done is assuming the law represents any form of morality.
And aside from any legal discussions, I do not think art should be policed in general. It is fictional, with no involvement of, and thus no harm to, real-life animals (or humans, in case of e.g. snuff art or noncon content that depicts things that would be illegal to do to IRL humans). Of course stupid laws exist, but those laws should be changed - and what should definitely not be done is assuming the law represents any form of morality.