No it’s not. 2 qps is pitiful. If anything $400 is crazy expensive. I guess most of it goes to traffic/storage costs, otherwise they are being ripped off.
I don't think they are overpaying for what they are getting. $400 is not a lot for a proper site that serves a lot of bytes. I just don't think it's that impressive either -- it's just yet another website serving static assets through a CDN, with low QPS too, so I don't see why it's noteworthy.