In the context of renting one of their VPS this is fair criticism. The information handed out by Hetzner is not adequate regarding their exposure and timeframe for patching. It's been several weeks since the public disclosure, and if they are still vulnerable for meltdown this puts all customers systems at massive risk.

"The host systems will be updated to fix the vulnerabilities as soon as possible. The necessary reboots will be announced on Hetzner Status. You may subscribe to be notified. "