Bin Laden was "from" within the borders of the Saudi Arabian (Sunni) state but he was a Shiite pan-islamist and a lot of Al Quaeda's support came from Iran, a major enemy of Saudi Arabia.

This is just to say it's much more complicated than "Saudis did 9/11", and maps like this grossly oversimplify things when they put Arab peoples into the types of cultural boxes westerners are used to seeing. It doesn't apply here.