We now have the ability to drag rules up/down in the list to change the order and Asana release notes (March 2026) say: “(Starter) Reorder rules: Reorder rules in the customize menu for more control over display and execution order.” Full Mar. 2026 release notes
Here’s a post I just added to another thread that may be a helpful idea for giving you more control: Allow user to define a specific order of rule execution - #26 by Elizabeth_Lumsden