It’s a static, non-interactive web page. Give it a rest.
It is if you are actually talking to the real server. But with plain HTTP it could also be a JS advertising laden hell hole, depending on your ISP and other middle boxes.
It's not static if it's http: any of the network hops can make it dynamic at will.
At which point the end user will see a non-static non-https link that they are free to distrust (and which browsers warn or will soon warn about). That complaint is not specific to this website and can affect any HTTP link any customer ever encounters.