I believe the title is a bit misleading. The borg site (html pages) is available in over 700 languages apparently. Could be but I do not feel that is so amazing. YouVersion supports 799 languages and has over 1100 versions.
Others, like banks/institutions are only to serve their customers and would only have the languages available to serve these customers.
The sites states:
One of the key pillars of the Jehovah's Witness belief system is that all its adherents must be able to read the Watchtower's (The Jehovah's Witnesses global HQ, based in the U.S.) publications in addition to the Jehovah's Witnesses' special translation of the Bible. In order for people to participate in the religion, they have to be able to read the Watchtower's publications, and translating their publications into believers' own language is necessary for them to belong to the religion
that is why they do this and they can because it is all done via almost free labor. In the company I word for, the main language of communications is English. Documents or publications are translated in some key languages (say some 25) but it is expected that everyone does have a knowledge of English.
My point: yes, it can be considered an achievement to have a website that can serve about all languages. It is not unique and not all contents is equally available in all languages.