Exactly. It doesn’t make sense to build a metro across 10 km of almost nothing (Anse station to St-Charles) at $150-250-350 million a kilometre so it can serve an exurb. For the cost of this extension (to have a metro not serving anybody for 10 km before reaching an exurb with 50,000 residents sprawled over a large area), the entire exo1 suburban railway could be refurbished, modernized, and electrified, including dedicated tracks and modern stations with level boarding like in the civilized world. Frequent, two-way, all-day service on quick, modern EMUs would be a game changer for a LOT more people than sending a light metro out to the centre of Vaudreuil to capture perhaps 5000 commuters (much of which would be cannibalization off exo1) and a few leisure riders and shoppers.