Why are Mormons so offended by the historical FACT that J. Smith and the Early Mormons were classic "unknown tongue" speaking Pentecostals?

And PLEASE spare us the unsupportable spin doctored, "our missionaries speak in unknown tongues whenever they speak in a language other than their native tongue" apologetic. Thank you.

The extensive references to Angelic, Adamic, and "unknown" tongues scattered throughout the Mormon Historical record thoroughly discredits that dogma. Thanks again in advance for NOT wasting my time and yours with that discredited, irrational apologetic.

Here is a SMALL sample of supporting Evidence from the historical record that proves that Joseph Smith and the Early Mormons were classic, "unknown tongue" speaking Pentecostals:

"About the 8th of November I received a visit from Elders Joseph Young, Brigham Young, and Heber C. Kimball of Mendon, Monroe county, New York. They spent four or five days at Kirtland, during which we had many interesting moments. At one of our interviews, Brother Brigham Young and John P. Greene spoke in tongues, which was the first time I had heard this gift among the brethren; others also spoke, and I [Joseph Smith] received the gift myself."
("History of the Church" by Joseph Smith, Jr., 1:295-297, November 1832)

"The above incident is thus related by President Brigham Young in his own history:­­In September, 1832, Brother Heber C. Kimball took his horse and wagon, Brother Joseph Young and myself accompanying him, and started for Kirtland to see the Prophet Joseph. We visited many friends on the way and some branches of the Church. We exhorted them and prayed with them, and I [Brigham young] spoke in tongues Some pronounced it genuine and from the Lord, and others pronounced it of the devil We proceeded to Kirtland and stopped at John P. Greene's, who had just arrived there with his family. We rested a few minutes,....In the evening, a few of the brethren came in, and we conversed upon the things of the kingdom. He called upon me to pray: in my prayer I spoke in tongues As soon as we arose from our knees . . .

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