>> Almost all decent datacentres and compute providers have these features

Multiple tier1 networking routes? I seriously doubt that. Those vendors won't deal with small players. AWS used to have 160Gbps in NA 10 years ago. EC2 has DDOS protection, for one simple reason, if somebody DDOSing it it will impact many customers. And you can also use Shield. The point here is that you have options. What sort of DDOS protection Linode or DO have? How much bandwidth did they get? How many tier1 routes? There are the sort of questions you need to ask for a fair comparison, which absolutely not happing on HN. Many people think that building a data center is like creating a hello world application. I have seen this repeadetly, several times.