What they asked Norris was simply just be fair, and Piastri was behind him only because they basically let him be there, and it would be fair to give Piastri what he deserves.
In the end, I understand why both Piastri and Norris would have been upset, it is not a clear win like they would want to, but this is the fair thing, this is how it has to be done for a team to be equal to both drivers.
McLaren developed a bad strategy for Piastri and caused him to be overtaken by Norris after last pit. I'm okay with that. However McLaren should have thought more thoroughly anyway. Norris has a more realistic chance to push for winning a championship now. It can't be denided I think considering McLaren is the fastest right now.
Piastri's first win could have been in a better way than this. Norris should have been given the win to collect 7 more very important points. Think about the chance he might even lose the championship because of that.
It looks like McLaren is prioritizing constructor championship, not Norris' chance.
That is the thing, I agree that the strategy put Piastri down, and that is why Norris was up, and they asked Norris to give up the position BECAUSE their own strategical decision, I get that and it was fair to ask Norris to give up. However, we need to remember that Norris "could" go for drivers title, which is insane when you think about it because it is not really expected of Mclaren to be this good normally, suddenly they became so great, like just a few years ago a 4th place was something amazing for them.
I think it's clear that Norris should have been given the first place, even though it wasn't fair, and even though Piastri would have only lost because of team strategy, we should have still seen Norris win because those points mean something to Norris more than it means to Piastri.
It is obvious that they are going for constructors, because Perez sucks, and could even be fired during the season itself, whereas Piastri and Norris combined could beat Max, hence why they care about team title a lot more. But they should still not put this type of mistake for Norris, imagine if he loses at the end of the season with like just five points difference? That would make this decision even worse.