Stage designs with combinations of a series of most demanding mountains very rarely create explosions.With stages like today you cannot bet on action but if there is then the stage design have a potential to make it epic. For me what happend on Bonette was the most likely outcome but if Vingegaard had felt good and sensed an opportunity they atleast would have tried. For instance there was action on CdFere before Alpe 2015 even if it went back altogether as expected in the valley.
Conta's big coup in the Vuelta was medium mountains stage.
More like the great processions of outsiders of the past who have completed the work from the distance.
Latest comparable stage I can think of was the short <110k stage from Mondane - Télegraphe - Galibier - l'Alpe - and it's true that Conta hit the gas 2 km into the first climb, but it ended up being the outsiders who got the main roles (Rolland's biggest victory ).
It's a quite different story speaking the gravel stage design or first stages in Italy.