Hi 4space,
I don't know Marie's point of view, I can only tell from my own experience.
If a sector is missing it can result in an area in which a person needs to do more to get results. If e.g. the South sector is missing it might result in recognition problems for the inhabitants and so on. BUT Feng Shui influences only one third of our life - the most dynamic part is human qi, i.e. your attitude, mindset and behavior.
The world does not fall into pieces because of a missing sector. It may result in a bit more work on personal development.
The effects of negative stars can be reduced. Anyway, they are only activated if the area is used.
