I live in Vietnam. This is perhaps the most common reason for use of indoor cameras here. People buy random cheap Chinese security cameras on the internet and put them in their homes. They blindly trust these cameras, which leads to what you're seeing in this article.
That's quite a reductionist and naive response. You never fully trust any other human being, you simply choose from the best of the options available. Furthermore, circumstances may change that drive people do to things that they wouldn't otherwise. Besides potential property crimes there's the added concern of accidents and legal issues arising from such. Cameras are useful tools to protect yourself from frivolous legal action by documenting everything that happens in places where employees are.
How is the room relevant here? Is it not a grave invasion of privacy regardless in which room of the house it was? What even is your point, that if the camera had been in the living room instead... then what?
The room is extremely relevant. The activities that happen on your patio, in your living room, are different than the activities that happen in your bedroom. Some of those activities are more sensitive than others
Not at all. But there would be less sensitive material to be observed in that instance. Just because there's different severities, doesn't mean anything except the ultimate severity is acceptable.