Why are RVR values reported in good visibility? I just pulled the METAR for KLAX. Why are they reporting an RVR value for runway 25L if visibility is 9 statute miles?

KLAX 281553Z 00000KT 9SM R25L/2400VP6000FT FEW012 FEW045 18/08 A3000 RMK AO2 SLP157 FU FEW012 FU FEW045 T01780083 $
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.