Something that appealed to me during my years at Bridgewater is the willingness to attribute failure to individuals without making those individuals suffer.

In "blameless" there's no personalities mentioned at all but in reality personality and individuals matter. EG if we had an outage because I put code into production w/o review, yes it's a systemic failure but it's also something about me, something about my manager, etc. By talking about those things as well, you make it easier for both the system and the individuals to evolve.