The blameless emphasis isn't liberal squish. It's because assigning blame on the aftermath of trauma mostly just compounds the trauma, plus bonus scapegoating.
* hiring conversations
* leveling and promo debates
* lunch discussions about *other* people's outages
* openly discuss the consequences of your own decisions, good and bad, where the full team can listen and chime in
* guide the conversation away from "good" or "bad" and towards tradeoffs. What scenario would this choice be optimal for? What are the edge cases?
Lots and lots of ways to have this conversation in ways that are less fraught than the aftermath of a site outage. And we should have them.
Blame is specific, and used to evade responsibility. When you scape a goat you let the rest of the responsible apparatus off the hook.