How can anyone declare Kamala Harris as a "moderate centrist", when she's officially the most liberal, 'progressive' Democrat in the US Senate?

https://www.govtrack.us/congress/members/kamala_harris/412678/report-card/2019How can anyone declare Kamala Harris as a moderate centrist, when shes officially the most liberal, progressive Democrat in the US Senate?
According to non-partisan GovTrack, which uses rational, consistent mathematical algorithms combined with a record of policy proposals, votes, and sponsorships to place lawmakers on the left-right spectrum (as opposed to subjective conjecture from dogmatically progressive journalists at a major liberal media organisation, as has been the case at the NY Times, Washington Post, CNN, MSM and all the others trying to tout her as a moderate centrist), Kamala Harris is officially the singular MOST left-wing radical Senator in the US, and literally the one and only US Senator who's had an even MORE left-wing extremist and Marxist track record in the last year than Bernie Sanders. So, what gives? And how biased would you have to be to declare her as a "moderate centrist"?
How can anyone declare Kamala Harris as a "moderate centrist", when she's officially the most liberal, 'progressive' Democrat in the US Senate?
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