What made it worse was an ex-CFS (but failed CAFFU examiner) seminar instructor, banging on about the EFATO turn back, fine if you in a Lightning (lots of energy and speed, with a big open military airfield behind you, but asking for problems in a light aircraft. Oh and his other pet subject was flying the approach, attitude for glidepath and power for speed was the only way you can teach it.
Sounds like he knew what he was talking about to me. It might be worth thinking again about what he said.
BTW, turnbacks weren't really appropriate for a twin engined aircraft like a Lightning, but were/are for single engine piston aircraft.