Inner rear lights not functioning, because Italian design!?

I purchased a Land Rover Discovery 2018 model last year in the Netherlands, and it was noted by the garage at its last service that the inner rear lights do not work. After some investigation, they determined that this is its original specification as the vehicle was imported from Italy. They checked the computer system and wiring, and they found there is no capability for these lights to have ever worked.

I've attached a video (zipped) of the rear lights with the indicators and brakes being used. Is there any truth in the above?

It's possile.

Here in NZ, a lot of 4x4's didn't have the ody mounted lights working, only the bumper mounted ones - the body ones didn't have the correct veiwing angle, as rear mounted spare wheel obstructed them... so they were blanks. Seems stupid, but that's the rukes.

Used imports from Japan didn't have to comply with the same rules though

Don't know about the Disco' 5, but on the Sport both Tailgate and body tail lights work on all models.
The only difference being Rest of World or North American Spec'.
The NAS having a side marker light.
Unsure if it of any help, but again on the Sport, it is the same feed from the BCM splicing off at a connection before the Tailgate.

The video shows the correct specification for EU lighting on that vehicle, you're not the first to assume they're function over form...