I don't know where or when the gift of tongues was bastardized into a meaningless public display of an indewlling presence, but it trivializes the true gift. The gift of tongues, the gift to be able to speak and understand languages you were never exposed to, was essential to complete the mission Jesus gave to go forth and teach the world at a time then there were literally tens of thousands of regional languages and dialects with no written languages, dictionaries or Christian translators available.
William Seymour brought a mixture of African animism, stream of consciousness preaching, and good speaking ability to a pastorless church without a guide in Los Angeles.