Constructing new capabilities for a computer, or a novel physical device to interface with the computer to extend its capabilities, should be patent-able.
IMO, in what I see of this patent, the computer used is not novel, the wireless signal utilized to transmit data is not novel, nor are the cameras that communicate with the computer novel. Nothing of value was built.
Law evolves over decades or centuries. Computer related patents are very new to the scene (in law years). They are getting better but there are still some clunkers out there.
In other more mature industries like medical devices, autos (auto parts really), kitchen gadgets, fasteners, packaging, HVAC, etc., the patent litigation (including trolls) is fierce too and has been for decades.
Should Carl Benz not have been granted a patent for the motor-car? Engines, wheels, and seats were not new.