From a business perspective, this clearly helps us understand risk of a single point of failure. Basic ORM tell us What is the Damage if it occurs, how likely is it to occur and then accept, mitigate or transfer.
For example in another life, I was responsible for the 'last mile' for a private city which included fiber in the road. We started to look at pop diversity (small private city that was near 2 pops, rare but happens). Instead we went with a pre negotiated contract with our fiber provider and accepted a 24 hour outage knowing that our Fiber provider was on emergency stand by if needed. They'd roll a truck and would have us back up within 24 hours (likely faster). The risk process included "How often do we have an actual fiber cut in the road." It had happened in the past, but the private city owned the roads and road crew, so new communications procedures were put in place and it had not happened since.
I agree with Bill. This is a business problem.