Mike, I'm probably opening a can of worms here, but I don't see whats so wrong about what Tiger has done and how it effects the core values of the game. He has clearly developed a PRACTICE facility that helps him to replicate all the different conditions he faces. In Florida I would assume some grasses are harder to grow in an unnatural environment. So Technology was used to make something feasible where it was probably once considered impossible or extremely difficult. Technology is used every day in every area of our lives to make life easier or more practical.
Sorry, but seems more like your are just Tiger hating.
It's a practice facility in his back yard, I highly doubt Tom Doak will be seeking Tiger's advice for his next project based on a back yard dream playground.