I. The sixty-six canonical books of the Bible as originally written were inspired of God, hence free from error. They constitute the only infallible guide in faith and practice. … [emphasis added]

IV. The eternally pre-existent Son became incarnate without human father, by being born of the virgin Mary. … To effect salvation, He lived a sinless life and died on the cross as the sinner’s substitute, shedding His blood for the remission of sins. …

I would also chafe under this one, since I suspect they mean this a lot more literally/factually than I would be willing to understand it:

III. Man, created in the image of God, through disobedience fell from his sinless state at the suggestion of Satan. This fall plunged man into a state of sin and spiritual death, and brought upon the entire race the sentence of eternal death.

My objections concerning their views of Scriptural hermeneutics, human nature, and atonement and soteriology, and their narrow advocacy of those views to the exclusion of others, are very much consistent with those of the 19th-century Unitarians (before the Transcendentalists muddied the waters further with the Second Unitarian Controversy).

I expect their views would so permeate their teaching that it would be difficult for someone who approaches the material with other beginning premises would be able to make much use of it.