a point arose about this is not poetry

[Apophrades]

Personally I think it is enough on my part to note that a problem exists.

Enough for what? Enough for the poet to simply know her piece is problematic? Enough to inspire the poet to change? To continue with your parable, you have already displaced the turtle by telling the poet there is something wrong. The point is, you know (or should, or think you should know) in which direction a poet should be headed, and that is towards good writing, however 'subjective' it is.