John, I'm an industrial designer myself.
Allow me to stipulate a thing or two on the matter of drawings... They're not merely used for production purposes. They are a means to communicate about the subject you're designing, if not, often helping in solving technical questions on dimensioning parts. Be it only for internal use or just for yourself as a designer, drawings can be a useful tool during the design proces.
So turning around your statements above, you would rule out this means of communication for designers then. Do you say that McNeel deliberately chooses to develop a designers' software without the means of having a 'live' 2D section cut that updates on the fly when your model changes. And denying designers the possibility of having a usable 'live' 2D view of their designs.
Hand-drawing 2D views and sections are no option, off course, in a modern workflow environment. Everyone understands that the risk on errors of little changes overlooked will be to high.
Can I say that you presume a lot of things about your software's users.
If not given attention in development, why are you using the sections, drawings, layout, ... in your advertisements? Are you then tricking customers into buying the software, with features that are not even production worthy. Furthermore, they will never be fully developed, we hear now!
Hmm, onerous statements you have, if you ask me..
PS: I presumed having some productivity gain myself, buying/using rhino layout/sections/... Wrong thinking on my account..