inconsistent filter operators?

Issue in .https://github.com/AdobeDocs/workfront.en/help/quicksilver/review-and-approve-work/document-reviews-and-approvals/create-review-and-approval-dashboard.md

Why are some of the filters "status eq" and others "status contains" (or not contains) -- what are we hoping to gain using an "equal" vs a "contains" where doc approval status are concerned? Is it just showing users that a number of different operators would work?