I can see a few reasons why I think red bull won’t be against this.

1. They believe they have the best drive on the grid. Put everyone in identical cars and Max still probably wins everything
2. They believe their aero package is better than anyone else
3. They were helped by a similar thing a few years ago when Honda was dropping engine manufacturing. Paying back the karma
4. Helps keep costs down. Making an engine be as good as everyone else is significantly easier than making an engine better than everyone else. There becomes a point when it is exponentially harder to increase performance