In case folks haven’t seen yet, dashboards are going away: About Dashboard deprecation - #2 by Thawatchai_Saengtham . It’s unclear how the Asana team plans to replace them (we can hope that Portfolios will cover some of our use cases), but further discussion on this topic belongs on that thread.
Here’s a thread that I opened yesterday which can give you an idea of how my team is using multihoming to manage project/team hierarchy, without dashboards, and a specific feature request to make it really “work” for us: Sync priority ordering between multihome projects . Maybe it will help some of you find a non-dashboard solution.
A multihome “parent project” containing all of the relevant tasks is a useful overview and would be especially so with the feature I requested there.