I totally agree with Mikl about getting your systems sorted on easier shorter multipitches. Bellbird Road and Sweet Dreams are excellent introductions into climbing longer routes in the Blueys. And Mirrorball is also a good intro into climbing at Pierces Pass. BBB is always going to attract beginners because it appears so easy in the guidebooks.
I hate hearing about incidents requiring climbers to be rescued. I take the decision to call in rescue very seriously (never had to), and would much rather take the character-building shiver bivy option then put other peoples lives at risk. Not only that, these events bring un-needed attention to our sport, and given the fragile relationships between climbers and land managers in many areas in Australia, who knows what restrictions could be placed on climbing.