I've had several graphic designs stolen and hosted on Chinese sites for screen printing
I know people who have had people get in contact with them after finding their artwork on any one of a dozen sites for sale making bank, while the artist sits in the dark eating ramen for the 6th month in a row.
Right, I think they have a little bit of everything going on. But even if this was stolen from whatever data breach, they'd need some competent engineers to make it work. Just as much as they may be stealing art, they are immitating a lot of foods that look just like the real thing, and a lot of times for legitimate purposes like store displays. Screw the people who shamelessly steal but give credit where it's due.
It's smart to start with a design you know that works first, and then afterwards unique r & d projects can build on good foundations, since getting the first design woking tested their design and engineering pipeline