Instant Replay in NJ

Boxing and MMA events held in New Jersey can implement instant replay from here on out. For boxing, it will probably mostly be used to determine knockdowns from slips. But mma could use it for things like false taps, assessing fouls, etc. Had it been used for the Arlovski fight, we may have seen the fight restarted after the stoppage. Or maybe the Smith-Terrell fight could have been restarted. Good or bad idea? Should Vegas implement it?