There's supposed to be an EASA rulemaking task force RMT.0581 looking into all this - not just the training for professional pilot training, but also for UPRT instructors.
What is not needed is someone showing off in an Extra 300 or similar! Instead, it is preferable that extremes of attitude and maximum 'airliner' g-forces are experienced in a suitable training aeroplane - and the importance of AoA and positive flight deck monitoring. This namby pamby "Err, O Captain-my-captain, err I'm not really very comfortable with this" needs to be rather more positive, in my opinion!