That's almost perfect.
Proposal: The use case is to inform the user of landmarks on the route before they need them, giving visual cues about the scenery.
It's missing an early distortion along the direction of the turn though, each turn feels jarring and drops the useful spatial awareness aspect.
I miss such a landmark feature in all available routing apps and think it will become standard in selfdriving cars where there is more possibility for the driver to look around the landscape