How does it handles backups, read replicas, failover? And more importantly - how it scales with load? For example our workload fluctuates between 1 vCPU to 128 vCPU in an hour. How it would handle this?
However, when we roll out the service in GA, you'll be able to "upgrade" the base system and one of the plan tiers will support autoscaling along the lines of what you've described.
The EA launch is for us to get PPG into the hands of our users and to vehemently listen to requests/requirements/bugs... your request has been noted and thanks for raising it!