Sure, in theory Hetzner could pull the plug or access the data on my VPS. But that’s true of any infrastructure... just like someone could break into my house and steal my self-hosted server.

In fact, I’d argue the physical risk of loss, theft, or data compromise is much higher at home than in a professional datacenter with power redundancy, security controls, and constant uptime monitoring.

It’s a bit like saying, "Don’t trust the bank, they could take your money and freeze your account — keep all your money under the mattress." Technically possible, yes. But come on.