Basics!
I suspect (and raise the anti-flack shields!), that a tremendous amount of basic flying skills are no longer required to be taught. Flying an aircraft safely has now moved to a stage where (generally) you are monitoring a computor/auto-pilot system and the basic skills do not appear "valid", we are into the "what is it doing now" syndrome. FATAL!! (I have only recently given up instructing and not just on basic aircraft!). Not all of the old skills should be forgotten! It could/has proved fatal!