Yes, they've always been banned, basically -- Australian federal legislation is only a couple decades old, but states had their own protections that predated pretty much any exports.
That's a captive husbandry problem with smuggled lineage animals like the carpets you mention -- it isn't really possible to figure out which specimens are related to the rest. I suppose with these locality lines it might be easier, since the smuggling was much more recent ('localities' of all these species is a pretty new thing, certainly newer than AU federal protections). That's not to suggest that such species or lines are worthier projects, since the 'rare species/locale' hook encourages more trafficking (once one has lost its luster, new locales/species are needed).