I agree, driver training and also experience essential. But I don't think there is anything to be intimidated about with the 3.7.
I 'grew up' driving on Australian gravel roads and Canadian snowy roads in the 1970's... with 'lightweight' overpowered rear wheel drive cars so hopping into a few 3.7 Roadsters for test drives over the winter was great fun... the back end seemed easily overpowered on slippery/damp surfaces, but seemed quite controllable and actually 'fun' as it seemed relatively easy to 'play about', the sliding was I thought quite progressive and controllable if you were expecting it.
I would imagine however that if someone had no experience with this, and was not smooth and progressive on the loud pedal, things would indeed get interesting. The new Plus 6 will be even more so... I am quite surprised that Morgan have not incorporated the excellent BMW TC system in the drivetrain... I think this thread headline could easily read 'Plus 6 crashes' in the future.
Perhaps Morgan should consider including some complimentary 'driver training' course with the sale of any Plus 6 and upwards... the last thing they need is a reputation for selling cars that are seemingly involved in lots of crashes, when some appropriate driver training would go a long way to mitigate that risk.
