I'm not sure there even is a standard metaphorical view.. I know of a few that see Genesis 1-3 as metaphorical.. but even then they/we see it differently.. sometimes quite differently..
I personally don't know whether Adam is metaphor or literal with metaphorical content, or some other reality.. Not that it matters greatly to me.. If we were to know exactly what the story Adam is about more info would have been given, I think..
I think being human is a test a spiritual test.. Details about Adam must be minutia to that extent.. so scant detail is good enough.. as are details about other things.. like what was Satan doing in "paradise" with Adam and Eve..
Being human, the human experience, must be a spiritual test.. for some future ugh!.. adventure.. A testing, a qualifying, a proving, for a/some future saga.. The bible seems to hint at that.. The personal/spiritual test then is more important than minute details of earthly history..
The parable of the talents also hints at that.. not to speak of the parable/metaphor of the prodigal son.. Getting caught up in whether Adam and Eve were real persons or metaphorical pointers to make the story make sense is O.K to me either way..
I don't require formulaic accuracy for the bible to be relevant to me.. Condensing several thousand years of all relevant human history in the few pages of the bible would be impossible, I think.. The point being did "we" get the "message" hidden though it is, is the point, I think.. Since most of the message(s) is/are hidden in metaphorical content is part of the test.. So many miss the simple most straight forward metaphors.. as you know..
It all leads me to the comment....
Is GOD cool or WHAT?... What a marvelous plan and testing platform..
It should matter to you if you read the words of Christ, and take them to heart, since he does refer to Adam as being a real person.
One should not be ashamed of the word of our Lord. Remember his admonishment.