Hetzner Cloud is great for what it is, I personally love it. But the pace of product development at Hetzner is such that I would anticipate something like a managed load-balancer maybe being available in 1-3 years from now, and after that another year for the next product etc. They don't seem to be in a rush to compete with AWS (or even Scaleway) by broadening their product offerings, they'd rather stick to their strength which is fast and cheap servers. I commend them for it, and their approach is very German, but it doesn't help you if you need these managed services.
To give an anecdote regarding Hetzner and them building out an S3 clone: I once asked support if there was a way for me to upgrade the 10TB max object storage solution (Hetzner StorageBox) to more than that since I had outgrown it. Simple reply: No, but you can spin up multiple storage boxes...
I wonder how much that is based on the company background. Hetzner is a traditional hosting company. Cloud companies either had large existing software development base and datacenter expertise, being way larger than a company like Hetzner, (Amazon, Microsoft, Google) or don't run the hardware themselves (Heroku, various DBaaS offerings, ...) and focus on the software offering, typically backed by VC to cover the initial investment. I assume Hetzner would like to expand there, but it's expensive, a culture shift and somewhat risky given their well-founded and established competition.
EDIT: I guess DO, Linode, ... are closer equivalents to Hetzner?
To give an anecdote regarding Hetzner and them building out an S3 clone: I once asked support if there was a way for me to upgrade the 10TB max object storage solution (Hetzner StorageBox) to more than that since I had outgrown it. Simple reply: No, but you can spin up multiple storage boxes...