Yes, I agree, Russ. That's why Burke's decision to perceive writing
(and speaking) as an ACT (and hence to ask what it DOES) rather than
as a text (and hence ask what it SAYS) is a crucial shift of
perspective. It leads to investigation of motives, readerships,
responses, etc. (as well, of course, as to seeing each symbolic act
as responding to and anticipating other acts).
The writing process is like a cable, an intertwined set of
related processes--creative, communicative/rhetorical, psychological,
and social. Too often, especially by those who teach teachers, it is
treated only as an individual creative process.