There's levels to can-dom though. Despite her record, Mara Romero Borella isn't THAT bad. I feel pretty comfortable saying she beats any of the cans Molly McCann beat, and it's not like her losses to Chookagian, Lauren Murphy, Montana De La Rosa or Cortney Casey are that embarassing when they're all top 10-15 fighters (Chookagian is obviously top 5, and apparently by some Disney miracle Lauren Murphy is now too)
Styles make fights though, and Molly McCann's defensive grappling isn't up to par while Santos's offensive grappling is solid enough (genuinely, she had a slick back take at the start of the Borella fight), it's entirely possible that Taila Santos subs McCann