The post you're replying to is pointing out that multiple days without reporting out a preliminary root cause analysis is so absurdly below the expected level of service here that it would prompt them to reconsider using the service at all.
2 days is outrageous here, I have to imagine whoever thinks that is acceptable is approaching this from the perspective of a company whose downtime doesn't affect profits.
What are you disagreeing with OP ?
He is talking about how to behave if you continue the relationship not whether to continue it .