Every single momentary cloud hiccup or lag should count as part of total reliability / uptime
Right now that granularity is massaged out of the official numbers and presentations given by 'Someone Else's Computer' salesmen. Blaming old in-house infrastructure and external Telcos comes first anyway.
Next time CEO's are pitched Cloud services, they should ask why everything from e-Sports to Fortnite doesn't run in the Cloud... Its telling how competitive video gaming is years away from being hosted there.