Because of angelic brilliance, what we are calling ‘little greys’ may be biological constructs with specific limits to their mental functioning. As such they would not be effected by the truth of Jesus one way or the other. There may be uncountable numbers of inhabited planets, but what if these intelligent inhabitants do not have a spirit? ... Think about the ramifications of that one!
How is this "angelic brilliance" concept reconciled with the mention of angels in the Old Testament as being mistakenly identified as humans...and even in the New Testament (Hebrews 13:2) where we might entertain angels unwittingly.