Well, I can't argue with that. Except that, since we rely on third-degree translations of the Bible that span hundreds of years, several languages, and very little archeological/historical evidence outside of it, I'm not so sure we can state with any kind of certainty what the early Christians did or didn't believe.
What was always interesting to me is that most Christians think it's blasphemy to compare oneself with God, yet they all refer to themselves as the children of God. But, don't children grow up to be like their parents?
Well, all we have to go by are the written accounts of the period. I am far from an expert on the subject but I do know Biblical scholars and historians have placed early Christian writings in chronological order and Paul's letters pre-date the appearance of the Gospels. Outside of a few sparse comments by Josephus, Paul was the first one to really write anything of significance about Christianity or Jesus. If we want to know what people believed, Paul is the source to go to.
Scholars also believe prior to Paul's written works, everything was relayed by word of mouth, kind of like campfire stories - the 'Q' source. As more and more verbal information was circulated, there likely was editing and error in transmitting the information - no doubt a lot of 'tabloid' type stuff. There are tons of apocryphal gospels out there with some really wild stories and sayings mixed in with a lot of the common themes you see in Matthew, Mark, and Luke. Even if one accepts the Canonical Gospels as inspired, one has to admit there were a lot of very active imaginations at work in some of the written accounts we know circulated.
Since we don't have access to any verbal 'Q' source, the earliest and least 'tainted' written source available regarding Christian theological beliefs of the period is Paul -- he was obviously preaching to various established Christian communities scattered around Asia.
Even though the figure of Jesus was the impetus for the belief and the existence of the movement, I would think it is proper to say Paul is really the individual who 'founded' Christian theology and gave it substance. Although Paul broke with many Jewish traditions(food, ritual, marriage, various theologies), the 'serious' prohibitions still applied -- idolatry, blasphemy, sexual practices etc. Given this, it would indeed be blasphemy for someone at the time to proclaim that it is possible for one to be equal to God or have the same properties as God. It is this reason that I think the word 'perfection' is probably an improper translation.
Also, I think 'Children of God' in a theological context is simply a metepahor for a creative force that gives birth to something new, it does not imply a direct lineage or inheritance. Just my humble opinions of course. Everthing I am saying could be complete BS.