A Wonder just opened near my house, and the "different restaurants" seem to really be just different sections of a large menu with distinct branding. I.e., there is a single physical kitchen that makes food from the different "restaurants".
I don't really know what the difference is, but I'm guessing it's that they didn't get to have a kitchen setup that was well adapted to their menu at the ghost kitchen.
I don't think anyone thinks this is "innovation"... it's just a slightly different take on Uber Eats / Spoonrocket / food courts / cloud kitchens / etc.
And if there is an "innovation", it's the vertical integration... it's a business "innovation," not a tech one.