The problem doing that with technical writing is that your audience isn't going to be judging you on your writing skills, they'll be judging you on the technical content. OP isn't worried about their technical content, they're worried about their writing skills. The technical audience is going to be affected by writing skills (it'll affect how well points are made, etc), but they aren't going to give feedback on that part. "Just ship it" doesn't work with soft skills.
I disagree! Maybe the relationship is less direct but practicing skills like writing, speaking and networking is one of the best ways to improve (reading about sick skills is another)
