Sure, I'll gladly include presets in upstream, when I receive them. But it seems much more straight forward to me, to share MOD pedalboards with the preset, then include it upstream.
Up/Download a pedalboard is somewhat easy and could be done by anyone here, without upstream need to work on it.
Include preset into upstream files, upload new version to git, rework the .mk file, rebuild and upload a new version to the store, download the new version from store, . .