I've given up on using Hugo for this site & finally moved back to Perch. The awkwardness of updating a static site just got to be too much, so I stopped posting. Now I can post quickly if I need to, and even update via mobile if I want to.
I'm using Perch Runway now instead of plain Perch. Runway's "collections" map perfectly to how I want to organize my content, and their developer pricing for a non-commercial site means there isn't a price penalty for using Runway. Thanks, Rachel & Drew!
The biggest downside I've found of using Hugo for this site is that it's awkward to create a new post. I have to be at my computer to create a new file (can't use mobile), and then I have to generate & upload to the server. The friction is minor, but it's still a small annoyance.
I'm considering using a headless CMS like strapi.io to remove this friction, but at the cost of more complexity. Mulling it over....