I was initially trained by the RAF to fly Jet Provosts. Those aircraft were not equipped with "G" suits" but the normal positive "G" limit for the aircraft was 6.5 G. Flown correctly, that was achievable by the average student (and sometimes inadvertently exceeded). I flew Bulldogs as a Qualified Flying Instructor (which included teaching others to fly aerobatics) but most of my 18 years RAF service was as a helicopter pilot and instructor. I was also selected to display helicopters at public airshows on behalf of the RAF. I was made very much aware of the consequences of pulling "G" from a very early stage in my basic training. The phenomenon, latterly known as "G-LOC" was well publicised within the RAF.
Irrespective of organisational or other failures, in civilian terms, the one person responsible for flying the aircraft in a safe way is the pilot.
An interesting parallel is that yesterday I was informed by the CAA that a civilian pilot who caused airliners to go-around from Luton Airport due to cognitive failure (in that he didn't know where he was and entered controlled airspace without clearance) has very recently been fined £7576.