Robin,
I also think that you are exagerating the downside. No one in their right mind jumps into an aeroplane that they are not capable of flying. I gues the Tyro- pilot has decided for one of many reasons that the D9 is for him and he will be mature and responsible enough to ensure that he is fully acquainted with flying similar variants before he launches himself into a pre-ordained problem.
FFF - think that you are miles out on insurance. My young chum, aged 17 and about to purchase a light, VW under-powered single seat taildragger was told, all you need is a TD endorsement and we'll take your £700 a year thanks.
It's a D9 not a firebreathing Sukhoi, my bloody dog could fly it - and the cornflake packet it came in! In fact, my dog gave me the speeds for the my first post on this topic!
Stik