That is literally what they said:
> I can no longer use OrcaSlicer to interact with my printers (e.g. sync filaments) and start prints remotely.
The remote interaction with the printer goes via their cloud.
> If you tell me my new toaster can send a live video of my bagel to my phone then I am entitled to receive that functionality without being subject to your shitware.
No you aren't. You might be able to use 3rd party clients, but this is never a given. BambuLab owns their cloud servers, they can choose which clients they will allow to use them.