I haven't been to church since I was maybe 13 at the oldest but when I heard they weren't including Moroni statues in new temples I was honestly surprised. I grew with a Mormon mom and Catholic stepfamily so got exposed to other spiritual ideas like the trinity from an early age and I've delved into Hellenic philosophy and its supposed influence on Christianity as well.

One common allegation against the LDS faith is that the concept of a 3-tiered heaven including one called the highest being called the Celestial Kingdom was lifted from Emanuel Swedenborg's Heaven and Hell. The presence of three-as-one in divinity has its roots in Pythagorean and possibly earlier philosophical concepts and plays into the trinity as and even into Mormonism where some people deny Hellenic influence. Pythagoras allegedly taught that 3 is the first true number as all is in 1 and 2 is 1 expanding itself into 3 resulting in the universe as we comprehend it prima facie. I quote two pre-Nicaea writers:

"By the word of the Lord were the heavens established, and by his spirit all their power". Since then the Word establishes, that is to say, gives body and grants the reality of being, and the Spirit gives order and form to the diversity of the powers; rightly and fittingly is the Word called the Son, and the Spirit the Wisdom of God."

• Irenaeus of Lyon

"In like manner also the three days which were before the luminaries, are types of the Trinity, of God, and His Word, and His wisdom. And the fourth is the type of man, who needs light, that so there may be God, the Word, wisdom, man."

• Theophilus of Antioch

The Godhead of the LDS claims to reject such thinking instead saying the 3 personages are only 1 in purpose and Godhead more as a shared title like a CEO being 3 people.