It's interesting the report doesn't really go into why the crew wern't aware of the RNAV approach when the plates were onboard and it was available for selection in the box. Eg were RNAV approaches widely used by the airline's pilots? Had the accident crew flown RNAV approaches at other airports? Were other carrier's regularly using the approach etc?
It seems this is somewhat glossed over. If the crew or their collegues at the time very rarly used RNAVs it might explain a little more why the ILS was deemed the only option.