it's a little more detailed than that...i'll PM you about it.
The fear was only part of it. Another part was insecurity, not understanding, pride, greed (wanting more), etc. Pride was a considerable factor that perhaps came OUT OF the fear, even though fear may have been a primary instigator in the theory you are talking about.
I didn't want to bore people with the details. Needless to say, it's a theory of Pentiuc's that isn't supported by much Patristic consensus, but is plausible on it's face. In our class in particular, he was focusing more on Fear > Insecurity > Desire to minimize the unknown > Knowledge minimizes the unknown > Desire for God's knowledge, so there is no unknown.
"O Cross of Christ, all-holy, thrice-blessed, and life-giving, instrument of the mystical rites of Zion, the holy Altar for the service of our Great Archpriest, the blessing - the weapon - the strength of priests, our pride, our consolation, the light in our hearts, our mind, and our steps"
Met. Meletios of Nikopolis & Preveza, from his ordination.