I stopped going to Av... Seminars after their abysmal attempts to tell us about the details in the approaching Part 61.
In general, I'd always thought they were preaching to the converted i.e. those who I thought should be going to them never do go to them - off topic, perhaps another thread some other time.
The last CASA seminar that I attended was with CASA appoints new Stakeholder Manager - Australian Flying. The venue could hold 200+ people and I had hoped that there'd be that many local pilots with an interest in giving feedback on regulation reform as CASA calls it, but no. Perhaps a dozen of us there, mainly old codgers. He got a clear message that priority is to fix Part 61 - still a long way off that let alone completing the conversion of CAAPs to ACs with guidelines of what the new regs really mean. AND, don't even think of implementing Part 91 until all of the guidance material is also complete.
Bottom line is that one must follow a number of CASA comms channels to see what is being discussed - by the time it gets to an AvS... Seminar it is too late to influence the outcome.