

Yup. Even easier, since a lot of the part modeling tools used by professionals use file formats that other modeling tools speak. AutoCAD is so pervasive that everyone speaks their format.
The trickiest part is inevitably the “are we knowingly giving people something that’s unsafe when 3d printed” that they need to do for liability.
Basically everywhere there’s a degree of “as a manufacturer of hygiene products you should reasonably catch risks that consumers wouldn’t, and not provide them”.
I’d bet there’s a handful of people putting together some nice and proper reports explaining that while skin flakes, oils and bacteria can get trapped in the layer gaps and lead to bacteria growth, reasonable cleaning would offset any possible issues. Basic ass covering.
Well, they kinda do. You can’t stop them from making the files available, and they never claimed it was something they had the power or desire to prevent.
“Let” can mean “grant permission”, and it can also mean “assist” or “enable”.