It is not realistic. I haven't seen any DNFs from the McLaren cars. Nothing to add about the fact that 3 Ferraris couldn't overtake the Minardi car. It reminded me of the tragic duel against Petrov.
The current generation of cars are awful. Big, bloated and sound....well, terrible. The constant focus on the current Aston Martin was tedious. Great concept, but always focusing on the 2023 car - when Alonso has driven some utterly fantastic cars during the V10 and V8 era - was boring.