Yes, it says that she was in union with Him in His work of Salvation. It DOES NOT say that she is a "co-savior" or anything else you may extrapolate from your misinterpretation of the Catechism.
I'm reminded of the mother . . . who's son, under great smothering pressure from Mommy Dearest became a Dr. And at the dinner party with all her couple friends from the bridge club . . . and with son and his new wife . . . Mommy Dearest is going on and on and on and on and on and on and on about how she helped him study in high school. And helped him study in College. And paid for everything. And on and on and on and on . . . everything always with her the star of whatever event or action she was talking about . . . such that son came off like a very low grade and low class Walter Mitty.
That's about how the RC magicsterical and reps sound about Mary's trumped up grandeur vs Jesus The Messiah, Lord of Lords and King of Kings.
Seems like one of satan's major tools is overblown Mommy Dearest gigs.