You looked at the original blueprints for hot dogs and said “too much protein, not enough carbs” instead of “I refuse to make two identical sandwiches in parallel”. Both fascinating observations :)
That doesn't look like the bun has the same texture as a regular hotdog bun. It looks more like a double dog panini. Plus it doesn't have the opening for toppings
In my region of Brazil we have three flavors (!!!!) of hot dog: beef (filled with meaty Bolognese), chicken (shredded chicken cooked in tomato sauce) and mixed (both; yes, BOTH!!).
Things Brazilians put in hotdogs:
Hot dogs. How many, you ask? Well, how many do you want?
There is no combination of ingredients a brazilian won't dare mix.
Americans will be whining about pineapple on pizza while Brazil is adding banana, chocolate, ribs and potato chips to it.
I'm honestly all for it, i hate this dumbass stigma people have over changing "traditional recipies". Fuck that, mix it up, throw shit at the all until it sticks, just make me something that tastes good.
That's fine, just change the name. It's not a Philly Cheesesteak anymore if you cover it in mushrooms, green peppers, mustard and pickles, for example.
On account of the square-cube law, you will get more surface area from two smaller sausages than one large one, so the two small win out in that aspect at least.
Okay but then they're squishy and flop around and send condiments everywhere rather than aiming them like a torpedo directly where they need to go: into your mouth.
According to the cube rule (https://cuberule.com/) the hotdog is technically a sandwich and not a taco due to the bun only really being two parts of a whole.
In case anyone from the UK needed another reason to prostrate themselves before the altar of Scandinavian interior design and foodstuffs this weekend, IKEA UK now sells the double hotdog at the exit bistro.
Mmmm... With double the nitrates, double the grease, and double the sodium who wouldn't want this??? Go ahead and have 2 or 3 of them! If eating doesn't make you break out in a sweat then you're not doing it properly!
Anne's Dairy Cream in Maryland will sell you a foot long double dog. They make their own bread, place is absolutely amazing.
Oh and just to be clear, The dogs are amazing, The cheesesteak is really good for Maryland, but the place itself is actually a little dive. I think there are seven seats inside all at the counter. I just want to set expectations in case anyone goes out of their way to visit.
And the default of chili, mustard, and onions is pretty un-fuck-with-able. If I wind up going to get my hair cut tomorrow, I could go for a couple double dogs on my way out.
Hot dogs are fucking gross though. It's already hard enough to drown them in enough sauerkraut, mustard, onions, etc, to make them choke-downable. Hamburgers are different, it's actually (usually) reasonably good meat as a base, doubling it makes sense.
So I don't think you're wrong, but I also suspect you haven't had an all-beef hotdog. Like the Costco hotdog. It's a very different dog, higher quality & uniform meat. Better texture. You should give it a try!