Yeah, I should punch up that translation but I can't find it. A program we translated and retrofitted a long time ago automatically generates that text along with the table formatting. Anyway, yes. Everyone gets Gran equal to their ranking points, minimum ten. The key is that "ranked" here really should be translated as "played in a ranked arena," since "ranked" generally is used to refer to those on the top 100 list.
"Scissors are overpowered. Rock is fine." -Paper