@ceilingcat - You're right about templates being helpful. I've written a few articles for publication, and I was provided with a template for exactly how the company wanted the article formatted. It really helped keep me on track.
I think proposal templates are an especially cool idea though and a small company could really benefit for them. If you need a proposal written, but don't have enough money to hire a proposal writer, a template could be the answer. Provided you can find someone who has a decent command of grammar and mechanics, you wouldn't need to hire a proposal writer at all!