In answer to are all GDIs locked out the answer is no. I had one of the first GDIs from new, a 2014 car, that used to regularly display the engine warning light when applying full throttle after a lengthy time at low revs. So stuck in traffic and finally having an overtaking opportunity I could almost guarantee the light would appear. I used to carry an OBD reader with me so I could clear it when I stopped. No idea if Morgan locked later cars.

Andrew
'Alice' 2013 Duratec Plus 4. Pearl Blue