Using cloud and box storage on Hetzner is more expensive than the dedicated server, 4x owning the hardware and paying the power bill. AWS and Azure are just nuts, >100x the price because they charge so much for storage even with hard drives. Contabo nor Netcup can do this, its too much storage for them.
Every time I look at this I come to the same basic conclusion, the overhead of renting someone else’s machine is quite high compared to the hardware and power cost and it would be a worse solution than having that performance on the local network for bandwidth and latency. The problem isn't so much the compute performance, that is relatively fairly priced, its the storage costs and data transfer that bites.
Not really what the article was necessarily about but cloud is sort of meant to be good for low end hardware but its actually kind of not, the storage costs are just too high even a Hetzner Storage box.