Ultimately very few people go to the airport just for the restaurants — except maybe Tortas Frontera sandwiches at O’Hare — and most people probably won’t know about this sort of option. It does mean incremental revenue for businesses and the airport, and convenience for customers.
With major US airlines and American Express lounges moving to require a same day departing boarding pass for admittance it’s unlikely to lead to greater crowding of lounges or greater costs for rail drinks.