I don't mind high stacked burgers but they are impossible to eat, so kind of defeats the purpose. It looks great for pictures as you say, then you lose half the filing or resort to a knife and fork to eat!Nothing more than a willy waving competition imo.
I'd rather have the same burger 30cm wide and enjoy more than one that's designed more for Instagram and the challenge gang.
The baps (and burger) that @JonRGV250 posted looked awesome! Its good to see a bread bun for a burger rather than brioche - I wont turn down a burger in either, just much prefer me burger in a bread bun.