(this is probably also a question for the radicle org, but just to add my point of view here)
We already have a close interaction with the radicle core team on https://radicle.zulipchat.com/ on a daily basis and are in the process of migrating our own repos to radicle as well.
As far as prioritization of features we build, that is absolutely the goal and that is, I think, why the proposal above states:
The plans below are tentative, however, there are cases where any of these projects might be dropped in favor of more urgent ones. For example, in cases where we are onboarding a community, they may be blocked by some missing feature. The team will move plans around accordingly to help in these cases.