Looks like CASA think one too many Jabiru engines have failed.
They have, however I doubt anyone at CASA and in particular in the sport office has even 10% of the engineering knowledge they need to asses the problem and "work a solution" through.
Give me 15 minutes with any of them and I can size them up.
Having said that the problem exists, and much of it I suspect is from maintainers either not knowing how to maintain them, and in RAAus land too many fiddlers who think they can make it better, and make it worse.
I am placing a bet that Jabiru will close voluntarily by end of the year or shortly there after, or they will go bust.
Nail in the coffin stuff here, even if they do not go ahead with the instrument.