I can speak with great experience to this topic.
I have been in a local aero club 25 years or thereabouts. In that time it has become very clear that CASA do not want traditional Aero Clubs involved in flight training.
Years ago, every small town with an airfield had an aero club, a 172 and an instructor (sole operator) but the aero club held the AOC. I gather that getting an AOC for that was not too difficult.
My club had such a structure since the sixties. Our operations manual came from a mob who did that sort of thing. Then following a CASA audit, our approved manual was suddenly no longer approved and we had to change things.
The manual mob though still existing then (and today) totally blew us off with radio silence. So I stepped up to fix things, the club had no other viable plan.
CASA requirements were becoming far beyond the capabilities of the people of a small town aero club. Many chucked flying training in. Some clubs folded.
Along comes Part 141 and all the requirements and it got ten times worse. I can say with great authority that the current requirements for Aero Club people in CASA approved positions and manuals and forms is well beyond the capabilities of ordinary aviators to be involved with, then not to mention the responsibility those positions hold, usually voluntarily (other than paid instructors). It is the Aero Club that holds the 141 Certificate, not the instructors or any other person. Yes there is a CASA standard operations manual draft which we have used, but I can tell you with great certainty that there are many traps in there that could bring you undone at audit. We (I) amended/deleted those traps.
(quick example - our manual said we would use the CASA Maintenance Release for the plane. Then our LAME innocently used the other RACWA one. drum roll ....... PING!)
Our current approved manuals are only good to the next CASA audit, where overnight they could suddenly now become not acceptable. We (I) do manage to do updates to match regulation changes. Oh, then WE have to PAY to get those changes approved. Let me repeat that one, WE HAVE TO PAY TO GET OUR MANUALS RE-APPROVED AFTER CASA CHANGES REGULATIONS.
We've had audits claiming faults and when investigated, some were totally shot down by their own regulations. The auditors were BSing. Some even claimed fault against regulations that did not even exist.
All these audit findings were to do with paperwork, nothing to do with flying an aeroplane. Sad, that's what it's all come to.
I had a friend in the trucking industry. He once told me the industry was now only about compliance, and if there was any time left over they might do a few deliveries.
I believe there will come the day soon (inside 5 years) when our flight training via the aero club cannot survive the paperwork.
We could transition to the Part 141 sole operator approval thing that does suit an owner/operator of a 172 trainer. They are the master/mistress of their domain totally, they wear all the responsibility. But that can have problems also if trying to exist in an aero club environment. Perhaps not so if they had their own premises (hangar/classroom) to operate out of.
Well that's my take on the Aero Club vs Part 141 GA flying training scene. It's a race to the finish line. Current VH plane utilisation is good, worthwhile holding on to. While we can.
Oh also, my club also got an RAAus plane and instructor and that is going really well for us. The club owns the plane. I play NO PART in the paperwork for that part of our operation! As far as I can tell, the operation follows the RAAUs standard manuals, there are no surprises, no variations, no specifics for us. IT WORKS. The RAAus operation HAS attracted many new young members and their family members to the club.