In St. Augustine's day the catechumens were ushered out at the end of the Liturgy of the Word; they could not stay for the celebration of the great mysteries, the Eucharist. When after baptism they finally could, all needed to be explained to them, as they had never experience it before. What drew them to baptism was not the liturgy itself but, perhaps above all, the witness of Christian lives. Granted, that exclusion holds no more and there are many famous examples of unbelievers converted by encountering the sublime of worship, either simple or festive.
The crisis of faith and culture, the estrangement from the life of the Church today, is something which in the West people tend to lay at the door of liturgical abuse and banality. The recovery of the sacred would go a long, long way toward putting things in order. I cannot but believe that more is at stake however, in terms of family life, in terms of the witness to Christ which should be the hallmark of our daily living. Action speaks louder than words, or as one of the Popes of my lifetime stated: our age requires witnesses more than preceptors. A healthy and eager, fraternal competition for the sake of saving souls might be fun and might truly edify. My only point would be that I doubt seriously if it depends on linguistic comprehensibility.