this is such a non-story. The witnesses had the plot of land much earlier, long before the Murah family bought theirs. The witnesses can do whatever they like with their plot. Even if they wanted a to build a skyscraper it is their right to do so. All their paperwork was right.
This family was just fooled by their real estate agent. There was no view stolen. If they wanted a secured view they had to buy another plot of land without neighbours in front of their view.