25 or 30 years ago, all of the modernist church growth people decided that the traditional liturgy (which was essentially an English translation of Luther's mass) was no longer relevant, so most congregations threw out 450 years of tradition and adopted the new hymnal and its modern liturgy. Now, of course, the modernists refer to the blue hymnal as containing the "traditional" liturgy and argue that it is no longer relevant.
We have the new LCMS hymnal and like it very much.