The system would be more efficient than the wipers, since it would instantly clear the screen. What’s more, it would also improve aerodynamic efficiency, since any kind of wiper, even McLaren’s mono-arm unit, creates drag.
Windscreen wipers have been around since 1903, so perhaps it’s only natural that they are put to rest, especially on advanced vehicles. After all, just about every technical advance in the automotive world comes from aviation and McLaren’s effort is no exception - such systems have been used by fighter jets for quite a long time now.
By the way, Stephenson had previously mentioned the system in an interview for Drive. He also used the occasion to mention innovations such as materials that can change their shape and have a memory, as well as color-changing body panels.