As a Hetzner bandwidth enjoyer affected by this, this is why ( HN cough ) multi-cloud/dedi k3s is great, because if you get rug pulled you just migrate to another provider with better prices. That said, $1/TB for bandwidth overage seems pretty fair. I empathize with the complaining but if the new price is such a ripoff everyone should be recommending what cloud VM provider they're migrating to for a better deal.
I use OVH (VPS’s specifically), which offers unlimited bandwidth. In my experience they’ve been both reliable and affordable which is a rarity. I run a few applications that require high amounts of bandwidth, so silly caps like the ones that Hetzner are imposing are a non-starter for me
But I only pull dedis from hetzner; my VPSen are all ovh based. So please nobody expect my experience to generalise without triple checking the terms just like I did in the process of signing up for those systems.