I don't have enough details about the exact setup, but the server cost looks excessive* to me. Especially those Xeon Gold and Silver machines (are they using managed hosting or what). Almost all of them are in single OVH data center too, that's not very robust.

* Compared to a certain German hosting provider, where I can get AMD EPYC 7502P with 128GB RAM for about 100EUR. Again don't know the arrangement, but with some effort they could add more servers, lower the cost and add Geo-resiliency.