The rear is under a cover, I will agree that that is dumb it should be in the same place as the front. Or if the goal was to avoid children randomly pulling it while going down the road at the very least it shouldn't be covered and just in the little pocket cubby thing. That's a valid complaint, although at the end of the day even with a normal car a toddler who was in their seat would likely be screwed as the child lock would most likely be activated.

The real issue here is a lack of any external manual release, wouldn't be that difficult to put one along the bottom side trim of the door. This would allow you to both give it a keyhole and have it out of the way aesthetically. I'd say just put a manual handle on myself, but if you absolutely must have completely smooth the hidden handle door at the very least make sure there's an external one somewhere for manual release