I like their products. I just want printing without fuss and without having to learn every detail about leveling, etc. Their product works for me and I do not care about its openness, it is about as important for what I need it as my headphones being open sourced (not at all). So this product is for my use case, not for people who want to control every aspect of their printer and every software feature.
IF they decide to make it prohibitively expensive to operate their hardware, then I will go back to a less capable hardware kit.
The openness isn't the thing, though it's important. The thing is you're reliant on Bambu Labs to keep your printer working. They could easily decide tomorrow that their cloud slicer will no longer support your printer. And now you're left with a worthless hunk of junk - the software still works, but the cloud software stops supporting your hardware.
Or perhaps your internet goes out - and now you can't print. Again, you're dependent on cloud services.
The whole point was that it works locally without needing an internet connection which is how it did with OrcaSlicer-bambu.
Because right now your 3D printer is basically like all the other app-driven pieces of hardware out there you can get - vulnerable to the app breaking or the vendor no longer wanting to support your printer and wanting to encourage you to buy their newest latest and greatest generation of printers.
They could also close up shop tomorrow, and boom, all printers disabled. Go buy a new printer from someone else.
None of that has anything to do with open-source or freedom. That part comes later, where maybe the slicer can work in a different way to produce better prints, but you're stuck with their software that doesn't do that. Maybe they'll offer a subscription that lets you enable new functionality.