It seemed to me that they had done the required stall and spin tests and it was satisfactory. CASA didn't like the reports and wanted more. An issue with a self-certification system. CASA eventually decided they had no issue with stall/spin characteristics. My opinion is that CASA and RAA are way out of their depth on this subject.
Meeting LSA certification standards and having behaviour suitable for a training aircraft are two different considerations.
As for the CG, seemed to me it was an error, put it down to incompetence maybe. I wonder how other manufacturers determine crew moment arms in a reclined seat like that.
I wonder whether the CG issue was a factor in the incidents/accidents. Strange that neither CASA nor ATSB has made a statement connecting the two issues. At least now, they should all be flying around with a much more forward CG than previously. The crew moment arm change had a significant effect.