Look if he wants to message them and ask about the feature then either support him or at least don't post semi aggressive remarks on why he shouldn't
I honestly don't know anybody who enjoys this feature either
In theory it's a good idea, real time grass erosion
but in practice it's lackluster. It would be nice if the grass grew back at a faster rate, or better yet have planting flowers and trees have a greater effect on the speed at which your grass grows
Nintendo easily has the resources to implement a patch allowing either of those options to happen
read this article, he has some good points
http://www.gamertell.com/gaming/comment/an-open-letter-to-nintendo-time-to-fix-animal-crossing-city-folk