Hey Martin! Thanks for you comment, but why are you saying that Spanner is more serverless?
You still have one node (or a tenth of node) to pay, full time, it’s not pay as you use. In addition, it doesn’t scale up and down automatically (for now), and the admin feature are roughly the same (optimisation, backup, restore, external table in BigQuery,…).
Do you have in mind a serverless key asset that I missed on Spanner?