As far as I am aware the Queensland licensing and regulations for keeping native species (reptiles,amphibians,birds) is still under review and being updated.
As part of these updates, DES tried to have it passed that under a RWL people would only be able to keep 5 animals in total regardless of species or group (i.e, you could have 5 snakes, or 1 snake 4 lizards, or 2 birds 1 snake 2 lizards but that is it). This of course triggered a rather large backlash from keepers (both reptile and birds) and subsequent counter-proposals and talks have been underway between interest groups and DES to try and work towards a more reasonable and less restrictive licensing system. It appears these counter-proposals have been somewhat successful in getting the limit raised up to a more reasonable 300 individuals, however this is still a significant decline from the previous unlimited cap that was on RWLs. However, as far as I'm aware nothing has been officially past or put into legislation yet, so it is interesting to see DES advertising that RWL license holders are limited to 300 animals.
As with many keepers in Queensland I am still currently awaiting and am interested in seeing what the final licensing system and limits will be once everything is passed and official.
Hopefully this helps clear up some of your confusion as to what is occurring,
Cheers, Cameron