Some of my vehicles have only had a glow in the dark plastic handle on a wire. It didn't even really glow. I'm not even convinced it wouldn't have broken off if ever pulled on.

I don't know if there are newer standards to this, though.

There'a a video, it's not really a trunk. He's behind the seats of a hatchback/minivan/SUV

Afaik, there's no requirement to allow those doors to be opened from the inside, like there is for trunks.

There's a fine legal distinction between a trunk and a rear/5th door. Only the former is required to have the latch. The ipace has the latter.

I haven't crawled around in the trunk of one looking for the release latch, but there probably isn't a latch given that Jag doesn't even put them into the European models of their sedans.