Oh no.. Now WW3 is coming.. get ready..
I believe its biblical and still accurate today. Scripture makes it clear. Its to built up and edify the body of Christ and other things. Before I go Imma give you a part of a Article kinda thing a friend of mine wrote ( he did em for multiple spiritual gifts but your asking about tounges)
Tongues and Interpretation
Tongues are Spirit-directed languages from heaven. They are unknown, even to the one who speaks them. When people speak in tongues the Holy Spirit anoints them and they are spiritually edified (strengthened and built up) through union with God. This edification happens without one ever knowing what is said. Such edification is experienced individually by the one who prays in tongues.
The Holy Spirit edifies the church body of believers much differently. For the entire group of believers to be edified, tongues must be followed with an interpretation (1 Corinthians 14:4). The interpretation of tongues is given in the language of the congregation. It encourages the people and moves them to praise and worship the Lord. The interpretation is not necessarily word for word. Rather it expresses what the Spirit is saying in a way that is clear and understood by all. This is necessary in any translation. For example, Psalm 23:1 is only four words in Hebrew, but it consists of nine words in English in the King James Version and eleven words in the New International Version.
Some say the gift of tongues is not important for it is mentioned last. However, the order in the various lists is not always the same. All the gifts are important.
The apostle Paul did not neglect tongues for he said, “I thank God that I speak in tongues more than all of you” (1 Corinthians 14:18). In the same chapter he also said, “Do not forbid speaking in tongues” (14:39). Paul asked only that “everything should be done in a fitting and orderly way” in the worship service (14:40).
The whole Bible from Genesis to Revelation emphasizes that God is a speaking God. Perhaps that is one reason why Paul in 1 Corinthians 12 to 14 gives so much attention to tongues, interpretation, and prophecy, with special emphasis on the importance and value of prophecy to edify the believers and touch the hearts of unbelievers. That is what happened when Peter stood up to speak on the Day of Pentecost. He spoke as he was inspired by the Spirit, and the Father in heaven opened their ears to understand what Peter was saying to them in their own language.. Peter didn’t prepare or develop the message beforehand. The Holy Spirit spoke through him as a gift of prophecy. As a result 3,000 were saved and added to the Church.