I think the OralVore people's problem is that they are trying to make way more money than is possible in such a niche fetish.
Live vore is only gonna attract so many pervs. That's just the way it is. Also, the concept that they should ever pay for porn, or that they will ever be willing to pay for porn is just foreign to almost all people. There are always gonna be a few guys with money burning holes in their pocket, who will fall in love with a specific girl, or want to commission specific things, but they're rare. And all that's just for normal porn.
And if a video is online, someone is gonna find it and share the hell out of it. It's as inevitable as the tides.
Most fetish vid makers accept all this and adapt. Galas, for example, just makes a ridiculous amount of videos in a lot of different genres and let's guys buy and share all they want. Katelyn Brooks does the same thing, but sticks to giantess stuff. They both seem to make a decent living without tracking down people.
Of course, they're both girls, so if Galas needs extra cash, all she has to do is run down to the pet shop, buy some fish, do her thing, and have mr. Galas film it and put it online. Boom, a few thousand more simp bucks. Jay, on the other hand, has to book a girl, probably pay her in advance, and do all the leg work himself. But he should know that's the name of the game: the girl is what the porn is all about ESPECIALLY with live vore, where the girls virtually take on the roles of goddesses.
I'd say he should probably try and expand into other fetishes, more common ones, if he wants the big bucks. I'd hate to see OV go, but I suspect there will always be crazy thots out there who will eat living things for money or even just because they're evil or something, so don't be too worried.