What's up with that

It's been a while since I have ranted , but this one sort of bugged me. When I was at choir practice the other day we found that the song "Yahweh I know you are here" or something like that ; had to lose the word Yahweh and replace it with Oh Lord. Whats up with that? According to the director the Vatacan said that the term Yahweh offended the Jewish community so all songs with Yahweh in them must now have it removed. Does this now mean that the entire Old Testament has to be rewritten to remove any reference to Yahweh; which by the way is a proper name of God? I can't for the life of me think why using a proper name would be offensive. All I can think is What's up with that?