They've already given Piastri a 9 point gain on Max instead of the actual contender. Max's lead could have been 53 points instead of 62. So nope, if it comes down to those 9 points, it won't be up to Max or Lando.
If they wanted Oscar and Lando to go racing, it should have happened much sooner in the championship. Not this late into it. At this stage it should be clear who the main contender is and who needs to provide support. On that basis, Lando did better to get this close and Oscar should be providing the supporting role.
Next year when they go racing and if Oscar should find himself being the main contender by this stage, I would expect Lando to provide the supporting role. This 'Papaya rules' thing should apply in the first half to determine who your main contender is, not the whole season. You would think that a competitive team (especially one with a history of this) should understand this by now...