I agree that it is ludicrous to try to put any blame onto ATC, or worse, the cabin crew, for this fiasco. How can anyone imagine that a message saying 'for information, you appear to have crashed' would have changed anything? And imagine the slippery slope if it becomes ATC's job to examine each approaching a/c to decide if it is correctly configured!
But one persistent question is that instruction to turn left which was ignored. I was under the impression that such instructions require acknowledgment, and compliance. Or an explanation if unable or unwilling. Even if established on the ILS. Why did ATC not repeat that instruction and demand a response ? 'Established on ILS' is not a response. 'Negative, established on ILS' would have been. Strictly speaking, ATC did not know their request had been received and so were they not required to immediately repeat it?