There's only one team on the grid that would pull something like this, and they wear all red. None of the other teams would put themself in a situation where they would have to do that, full stop. RB play hard and fast on the technical front (airflow, engine maps etc), McLaren have been caught out with Ferrari docs before so they're not squeaky clean (although all the other teams do it too, they just got caught), but to deliberately penalise one of your own drivers to fix the grid, which also ends up screwing with other drivers? Nope, I cannot see anyone else trying that.
I suspect there was a hell of a row behind the scenes between team bosses and Bernie after the race, but they've all been asked to keep quiet.