[bumby]

This is only true if you define efficiency as the inverse of redundancy. Sometimes efficiency is gained by reducing waste, not redundancy

[nevdka]

Redundancy is easy to misclassify as waste, particularly for someone who has incentives to find more ‘waste’ they can cut and claim credit for.

[bumby]

I would add it's also easy to misclassify when dealing with high-risk, low-probability events. The fact that someone hasn't witnessed something happen in their entire career can lead them to think any mitigation against that event is waste.