Indeed the proliferation of T20 across the globe is the major cause but it shouldn't be an insurmountable problem -nothing wrong with the powers of concentration of the Aussie batsmen, even the tailenders. Shoehorning the CC into the beginning of the season when most of the better English players are at IPL is also a contributory factor,however, which is within ECB remit. This season's schedule has been perfect imo- pity that it can't be maintained.
I fully understand bitterness to ECB lingering, after all Durham are still suffering because of sanctions. The fact is they're a shambles of an organisation.
Won't blame them for SAFC's demise but I suspect both organisations qualified from the same management school