That’s a fairly poor excuse and I doubt a conscious decision on Teslas part. It’s another case of automakers have been able to have a door mechanism that can be opened without power after an accident but prevent children from opening when the car is in use. Tesla reinvent the door handle and in some respects it’s worse.The lack of accessible door release on the M3/MY is to prevent a curious child from ending up tumbling down the road. There’s little point having child locks if they can just pull a release cable. The likelihood of this happening is much higher than them being trapped in the event of an accident.
Even Tesla seem to agree it’s a bad idea to not have them as it appears they’re now fitting them, and have a,wats had them on their flagship models.