Based on my experience I assume someone mentioned the risk, others said it’s unlikely and only a small percentage, that we should care about the 99% for now. Then the issues isn’t revisited until someone impacted complains enough.

p99 is ok for web stuff, not for systems that impacts people in their life, but I’ve seen too often things being dismissed because they are edge cases (which becomes an actual real issue at the scale of a country of course)