I’m at a place with a similar policy: you can screw up, just own it as soon as you realize you screwed up, do your best to mitigate the damage ASAP, and see that the fix gets prioritized appropriately.

I still screw up, of course, but this attitude has made me feel less paranoid about performance and less like an idiot when I do mess up. The amount of trust a team needs to have to make this work is really the key,IMO.