Making Expectations for Artist Career Stages

Sometimes, an artist's career stage doesn't accurately reflect their true status. I understand it's determined based on the median of the artist's Chartmetric Artist Score over the past 360 days. Still, it may not capture the impact of legendary artists whose scores do not reflect their lasting legacy, who mostly have releases over 30 years old. For example, Fairuz and Warda are both legendary artists. This is related to consumption patterns in the Arab world and other non-US markets, in which the median fails to represent the career stage accurately.