OPES claim on iCAP

I' confused.  In trying to respond to another message I finding myself 
asking why OPES seems to need total control of iCAP.
If it's published as an Informational RFC (with the current nits fixed) 
what problem does that actually present?
Is it the job of a proposed working group to worry about the interaction of 
standards bodies on a protocol that they themselves say they may choose not 
to use?  (And that if they do, may end up being something so different that 
it's not the iCAP that's been examined by those other standards bodies.)