Why won't Rockstar Games give GTA 5 a police mode update?

Here’s a question: Why won’t Rockstar Games add a police mode to the games console versions of “Grand Theft Auto 5”?

After all, while so-called “modders” have added a highly popular police mode called LSPDFR to the PC version of Rockstar’s game, the Xbox and Playstation console versions of GTA 5 continue to lack such a mode. This is a great shame in that it limits Xbox players to wreaking virtual criminal havoc on the fictional city of San Andreas, rather than giving them the ability to serve the finer moral values of law enforcement.