Your first link is a restaurant in a shopping mall. It has the interior facade of being a diner, and it serves...avocado bites, spicy chicken nachos, kimchi burgers, etc. Not really the same!
Every now and again someone will open a "American Diner" here in London, then have normal opening times and serve basically the same food every pub serves, only with more milkshakes.
Like, no. I want my American-style hash browns, over-easy eggs, and country-fried steak, not the same burger every pub on the street is doing.
And (refillable) filter coffee please, not just espresso drinks.
Vegas has an eiffel tower too...