"Finally, Levy emphasizes that steps to mitigate the impacts of these outages need to be taken. Hyperscalers and cloud providers can, for example, migrate workloads to other datacenters or run those workloads across multiple zones or regions to avoid interruptions to their services."
Anything is possible, it just costs money. So the likely outcome is that the subscription costs will rise.
Earlier in the article it states that the datacentres are designed for the normal climate they are operating in. If that is changing (and it appears to be increasingly clear that it is) then investment is requires to do all the upgrades, assuming the locations have the physical space and power to do so.
Just moving workloads to another location is not quite so simple when capacity is already stretched. Equally, the datacentre it is moved to may also be in an unexpectedly hot zone. Unless they are suggesting the workload should be moved out of the region which the creates massive issues on data sovereignty.