This is not true at all. We run a large setup in OVH Gravelines and another in us-east-1 and we’ve not had a single outage in 3+ years with OVH. I can’t say the same for AWS.
You have been lucky with Gravelines, OVH had major outages lasting several hours in 2017 (Roubaix, total loss of routing for all of the 6 DCs) and in one case close to 24 hours (Strasbourg, cascade of events resulting in total power failure http://status.ovh.net/?do=details&id=15162 ).
In that period (2015-2018) I used to run a fairly well known French website on OVH, and their network was very unstable, from equipment failures to way too many fat-fingering of routes. If you're able to easily switch traffic between OVH and AWS you're in a far better position than most people.
We stayed away from Roubaix given the experimental design. Not sure why anyone would put production stuff there. I can’t speak to Strasbourg that sounds horrendous. But Gravelines has been rock solid and 4ms latency to London.
But at the end of the day outages happen everywhere, including AWS. We also have some kit at Hetzner and I think that a redundant setup across OVH and Hetzner will be a fraction of a cost of single AZ setup in AWS and yield far greater uptime.
We’ve commoditized the servers and services (cattle vs pets)...why would we treat the providers any differently? Use cheap components and lots of redundancy.
