This car is going to be recalled.
All cars are required to have an emergency door release.
The door release is usually either the handle itself (operating mechanically), or a lever (usually near the window buttons, in the door storage compartment, and sometimes on the A-pillar near where you reach for a seat belt.
The MG4 was just rejected in Australia as an inspector noticed there was no emergency door release, and they were unable to exit the vehicle with power removed.
Imagine if you drive into water or have a smash and cannot quickly exit the vehicle due to a software/electrical fault. Unacceptable. Don't know what UK rules are, but this is a joke, no software update can fix the fact that you cannot mechanically open the doors.