agreed. this can be optimized by the community. Sometimes, and I'm not saying this happened I am just saying that sometimes engineers have a strong desire to over-engineer and that might be costing money. Also want to add that maybe you can get approved for AWS for startups for example and migrate some compute there.
They are already on AWS, and that is the problem. Probably wouldn't cost 1/10 with normal server leasing, but they have to code their way out of any AWS specific services they rely on before they can switch provider.