Update: The audit score recently evolved:
Nodes now get disqualified when dropping below an audit score of 96% which makes this number even less precise, but at the same time closer to the % of authorized loss before DQ (Nodes with more than 4% of data loss are DQ). So in a way, it is now more intuitive…
Even though I still think it could be reworked to pan from 0 to 100% visually on the dashboard, if we want to keep its current way of working maybe a simple relabeling for this score (like “Stored data health”) with a tooltip detailing the 96% threshold could be enough?