What do you mean? The big bare metal providers have multiple datacenters with fat pipelines and peering. You can put those geo-separated servers in the same subnet.
Europe and US is covered, it looks like Asia a black spot for Hetzner, I will give you that.
I doubt that so many business have such size and global reach, that world wide latency is a priority. If it would be, the average site would not connect to 20 domains to load megabytes of javascripts, trackers and what not.
(Also, at Hetzner you can even rent their network hardware if you want to make custom solutions.
I don’t know why you are suggesting that people will build unreliable things. My company’s first day of AWS was the first time AWS had a major outage. We were sold on more reliable, but I can tell you AWS is just as reliable as home grown BS, if not less reliable. The biggest difference is what you do during downtime: in AWS, you refresh status pages. In your actual hardware, you’re actually problem solving and able to build/deploy workarounds to get back working within 30m.
Having worked for one of the major cloud providers in the past, I second this.
In fact, I have no idea why people go for those. You pay a massive premium for the "privilege" of not owning the infrastructure, and being subject to opaque pricing and outages that are completely beyond your control.
And in terms of actually managing the stuff, now you have to pay staff to manage your cloud things too.
(Also, at Hetzner you can even rent their network hardware if you want to make custom solutions.