You're totally right, he should definitely stop working to give more frequent progress reports, commit to a firm release date so we can be mad when he misses it, and make smaller updates more frequently so we can complain about how small they are. People definitely won't remember that as each chapter took longer to make they also got bigger and better, or that we got so many previews (3 times per month) through most of the dev cycle that some have complained they spoiled too much, or that the dev typically "goes dark" as he focuses on finishing each chapter.
I'm following (and supporting) him for PV, and will most likely support his next game unless it doesn't appeal to me.