With AWS - failure means the instance is automatically retired, and your ASG causes a new instance to automatically be created and put in service without you having to do anything.
With hetzner - failure means your monitoring detected disk failure, sent you a pagerduty alert, which you then have to check the alert, figure out what has failed, and send in a support ticket to get the disk replaced. This will take a couple hours, after which you have to rebuild your RAID array, and hope no more disks fail. All the while operating with degraded performance.
(Don't get me wrong, hetzner is _great_, I've used them for years and highly recommend for numerous scenarios - but the idea that their failure and reliability is anything like "the cloud" is fanciful)
With hetzner - failure means your monitoring detected disk failure, sent you a pagerduty alert, which you then have to check the alert, figure out what has failed, and send in a support ticket to get the disk replaced. This will take a couple hours, after which you have to rebuild your RAID array, and hope no more disks fail. All the while operating with degraded performance.
(Don't get me wrong, hetzner is _great_, I've used them for years and highly recommend for numerous scenarios - but the idea that their failure and reliability is anything like "the cloud" is fanciful)