There is little doubt that aviation safety has improved significantly over the past twenty years. Rather than debate the merits, validity etc., of this safety list, perhaps we should reflect on where we see the safety standard today vv say 10 years ago, 20 years ago.
Would you consider Qantas to be safe as it was 20 years ago?
You may recall in the 80's Boeing did a study of airlines that appeared to be safer. A key finding was solid SOPs and their application.
Are the basics still in place, standardisation, training and sound maintenance practices?
If the answer is yes, then has the rest of the world learnt the lesson?
If no, then is the slip in the ratings justified and what are we going to do about it?