[ speaking as co-chair... ]
guys - this is tiring, so let's go back to first principles.
the charter is quite clear in saying that the work product has to
address the IAB considerations. it is also quite clear in stating that
the work product can diverge from those considerations providing that it
clearly documents the rationale.
to topic of what the iab/framers know or didn't know isn't
relevant. what is relevant is that the document editors need to make
sure that there is concise explanations as to why a given document
diverges, so that the poor iesg can decide whether the trade-off is
acceptable. (by definition, only the iesg and iab know what "the big
picture" is.)
thanks,
/mtr