Hetzner in particular is a disaster waiting to happen, but yes I agree with the sentiment. OVH doesn't arbitrarily shut off your servers or close your account without warning.
The move does cost money, once. Then the savings over years add up to a lot. We made this change more than 10 years ago and it was one of the best decisions we ever made.
Recently I've been moving most projects to Hetzner Cloud, it's a pleasure to work with and pleasantly inexpensive. It's a pity they didn't start it 10 years earlier.
Why would you spread FUD? They have several datacenters in different locations, and even if they were as incompetent as OVH (they are not)[0], the destruction of one datacenter doesn't mean you will lose data stored in the remaining ones.
[0] I bet OVH is also way smarter than they were before the fire.
During that time, one of my servers was hacked once (I was stupid enough to start digging Monero on the same system I had some other services installed) and another time one of my users had a weak password and his account was sending spam. In both cases they notified me and gave me the time to fix the problem. I also appreciate human contact and quick replies.