I use my printer to make prototypes for my business. There is no way in hell I'm sending them into the internet for some random to examine.

I think my next printer will be mostly 3D printed, with a few generic parts like motor controllers, the odd bit of metal tubing, off the shelf bed levelling system, open source software etc.

I only need single colour prints for work, and AFAIK the fastest printer on the planet is mostly 3D printed, I'd start with that one as a base and adapt it for my needs. I considered Bambu until they started down the road that ends with me not having control of the product I own. Any company on that path does not get my money.

Seems like an overreaction. Licensing aside it is trivial to use a Bambu completely air gapped.