FYI - while it’s a tad clunky, I did setup a free account with the Taco app (Taco + Asana integration: prioritize all your tasks • Asana) which allows me to pull in ALL tasks assigned to me across ALL Asana organizations I’m a part of. Using the custom filters in Taco, I could sort that list to display which org each item came from and other details.
It’s not gorgeous, but it solves the short-term need to see all my current tasks (especially those due today) all in one list 
