Calm down lads. We all hate people who hurt animals and pitching shit at one another isn't getting anything done.
I don't think Brutal Poodle was saying that "regular" zoos are in any way better than zoosadists, just that legally speaking the likelihood of them getting more than a slap on the wrist was, up until PACT was drawn up last year, far less likely if the animal involved wasn't being actively gutted during the process. Many states seemingly considered raping an animal on par with punching an animal in terms of severity; depending on the size, type of animal, and severity of physical damage, there wasn't really much point in laying charges if it was just a "one time" thing.
Even in states where bestiality was illegal and charges could be laid, it was treated mostly as a misdemeanor and would rarely accrue jail time in most places, unless you're talking about big names like Spink and other beast farm owners; even then, they would typically be combo'd with other federal crimes to help them stick, such as possession of CP or drug charges. Suspected zoophiles would not be able to be charged with bestiality even if they personally owned up to it without photographic/video evidence or a direct witness to the event. Your bargain basement dogfucker would, at most, typically receive a fine and community service and possibly a decree that they cannot own any animals, although this would be easily circumvented with shady backyard breeders who wouldn't provide a paper trail. There was no real sex offender registry for animal rapists at the time and, while there is one being worked on now, it's still in it's baby phase and likely won't be really useful for a while, especially as the American government continues to implode every other week.
The most severe repercussion that your bog-standard zoophile might get would be by becoming a social pariah in their community if outed, but this would also be easily resolved by just moving to a new state with more lenient laws and starting fresh, which is something we have known many zoophiles to do once they get in trouble.
Furthermore, there's the simple fact that zoosadists seem to be extremely well-connected within the zoophile community. This makes them extremely important targets in the sense that identifying one zoosadist often leads to a clusterfuck of other zoophiles, in particular those who hold jobs they shouldn't such as vet techs, ranch owners, and breeders. This in turn cuts these networks off from accessing important resources that allow them to circumvent legal blockades and pitfalls and forces them out into the open, so to speak. As with any criminal enterprise, your target shouldn't be only the drug addicts because there will always be more; if you really want to cut things off, you have to go for the dealers and suppliers.
As for Toggle and whether or not he would be worth looking into by those who wish to do so...
According to the tail end of Part 3 of Toad's Zooier Than Thou documentary, Douglas Spink apparently believed that Toggle might've been a zoosadist and went so far as to confront him about it, although the exact details of this are vague in the podcast episode itself. Given Doug's own history as a probable animal killer and abuser, along with the fact they let Kero off the hook under the pretense that 'he was groomed and didn't do anything' despite that being demonstrably false, and Doug letting Tim Win walk twice to protect the zoophile community from negative scrutiny, I think that Toad's suggestion that Toggle may actually have at least had a passing interest in zoosadism at one point or another may be worth looking into on top of his active zoophillia, especially as he seems to be hyperfocused on not outing himself in any way, shape, or form.