The point of the blog post is that Timescale cloud isn't totally "serverless", because for some 20% of use cases, you do want to think about nodes and other database internals.
From the blog post:
"So today’s serverless data platforms are not familiar or flexible. But further, black boxes are never truly easy and worry free: you never know if there are any skeletons lurking in the proverbial closet, just waiting to cause your service to fall over."
From the blog post: "So today’s serverless data platforms are not familiar or flexible. But further, black boxes are never truly easy and worry free: you never know if there are any skeletons lurking in the proverbial closet, just waiting to cause your service to fall over."
(Timescale employee here)