Wait, you mean sailing isn’t just like playing a video game?
Certainly there needs to be traditional outside the boat situational awareness only complemented by technology, not replaced by it. I would hope crew could glance at the instrument periodically and call input to the skipper as required, while the skipper looks around and takes in all the input he can from wind, approaching boats, etc. Personally I have a hard time judging time/distance, so another tool in the toolbox could be valuable. This product doesn’t really seem targeted at a boat like mine that already has NMEA instruments, but it’s interesting to see what’s out there.