Also some speculation that the cats might have been stolen

Almost has to be the case. There is a reason no one farms cats as meat, they are obligate carnivores that will eat more meat than they ever produce. It isn’t economical to produce cats for meat if you have to actually feed them. It only makes sense to “harvest” them wild on the streets or from kitten mills, shelters, vets, wherever you find spare cats in China.

Framing animals for meat only really makes sense if those animals eat lower on the food chain. Turning grass / grains into meat makes sense. Turning meat into meat doesn’t, especially since the cats would pretty much have to be eating more desirable meat that they produce. Imagine feeding pork, fish, and chicken to cats in order to make cat meat.