I'd agree with you if WVA had one 1 or 2 stages already or if Vingo was gonna put 30+ seconds on Pogacar.
However, neither of them was a fact. Now imagine happy with his stage win WVA helps Vingegaard and/or Roglic gain minutes tomorrow or in some other stage?
And what if he had waited for Vingo, were caught and Pog wins the Tour by 5 minutes, JV at the same time remains without even a stage win?
This discussion looks pretty much like the ones with The Chicken(?) in 2018, who was insisting on "Orica could cost Yates's Giro by giving 4 seconds to Chavez"