I've used Vultr for about the same amount of time, and I never got an email that some network switch had a hardware failure and it'll take a couple of hours to restore connectivity, but I've had that happen with Hetzner more than once, in the same time-span. And again, I say this as a Hetzner-lover, and someone who prefers Hetzner over Vultry any day of the week.

Sure they’ll throw you some service credits. But it’ll always be magnitudes less than the cost of their disruption to you.