Facts from official webpage of 36 SPLT:
3528 hrs total
2937 on type
As mentioned before, PLFs are flying mostly around the country, both in service and in training. So I believe any 100 hrs would mean similar (if not greater) number of landings. Some of them (airports) are not equipped with to-date equipment (CASA case, anyone?). In fact, only the civilian airports are equipped with ILS (plus EPSY airport, which is in fact now non controlled, I believe, staffed only for training and when required). So, I believe with plenty of landings (thousands) and - even considering the probability - at least some of them in poor conditions, their experience cannot be evaluated as "inadequate". I believe what happened is much more a difference between civilian and military pilots when considering acceptable risk, plus pressure, leading to pilots error (approach below minimas). Lack of information about strip and/or approach might be contributing factor as well, of course, if it turns out to be true.