Why are RVR values reported in good visibility?
It looks like that METAR was corrected to 


  KLAX 281553Z COR 00000KT 9SM FEW012 FEW045 18/08 A3000 RMK AO2 SLP157
  FU FEW012 FU FEW045 T01780083 $


Note the COR for corrected. The corrected METAR does not include RVR. 

Including a screen grab of aviationweather.gov in case they dont keep the info up for a long time.