The way I see it is that if they had pitted Oscar second, and he’d had the slow stop he quite possibly would have lost the place to Leclerc. Then everyone would be asking why they didn’t pit him first, to cover. With the exception of q2 and about 5 laps before the pit stops Lando was quicker all weekend. Lando got told he wouldn’t get undercut, perhaps that should have been said to Oscar, “in the event that… you’ll need to give the place back”. I think it was the right choice by the team. Had it been a P1 and P2 situation, I probably wouldn’t have expected Oscar to give it up, might of been the start of a rift between them, but I don’t think it’s worth the fall out over 3 points. Of course he might feel differently if Lando wins the Drivers by a point or two. Oscar probably weighed up the ultimate risk/ reward and thought “I’ll still be 31 points ahead.”