Not really. See the support page regarding this:
As a new default, your phone number will no longer be visible to everyone in Signal. You can opt to display your phone number. However, people who have your number saved in their phone’s contacts will still see your phone number, regardless of your settings, since they already know it.
From the incident report it seems the impact was limited to VMs in one DC in one region to be stopped, as the power was lost. And some service degradation in the region.
So not that much impact. Of course resources in this DC would stop working, but the rest of the region was still working properly. If you built your infra in this region in a resilient manner, your services should not have been impacted that much