Sounds like the worst idea ever in terms of a reality series.
Oh, hardly. A game show where people run around a large maze and try to avoid each other? Silly, yes, but refreshingly harmless compared to the kind of reality show where the contestants are encouraged to mistreat and deceive each other and stab each other in the back in order to win a competition, or the kind that's about invading people's privacy or using their real-life misery as fodder for entertainment.
I mean, really, isn't football essentially a game of tag to an extent? Or baseball? Lots of sports include one player trying to avoid being touched/intercepted by other players. I don't see how this is fundamentally different. Except that it has the twist that if the pursued player comes into possession of the right type of "ball," he becomes the pursuer and can tag out the other players. I can see it working as a game of strategy, action, speed, skill, etc.
And it's not like there haven't been maze-based game shows before. Although I guess few people remember
The Money Maze, a short-lived '70s game show hosted by George Clooney's father Nick. But apparently there was a successful British game show called
The Crystal Maze.
Besides,
Pac-Man is one of the most enduring successful computer games ever made. People still play it today. So it must have some genuine appeal as a game. Why couldn't it be appealing as a physical sport as well?
I consider it the most logical explanation. 
