‘Mom Jeans’: Derogatory Or Not?

Seems there’s some controversy on the Facebook side re: this description of what Mary Souza wore to the Brannon Election Trial Saturday: “Best dressed OpenCDA lady today with brown Calvin Klein corduroy 5 pocket jeans worn mom style . She layered her white lace trimmed tank top with a soft peach v-neck sweater.  She looked youthful as her lace trim was properly peeking from her sweater hemline.” They key words are “jeans worn mom style.” Seems the term Mom Jeans comes from this “Saturday Night Live” skit here . I’ve never heard the expression “Mom Jeans” before. It appears to me that the Red Carpet reporter was being complimentary here. (Singer Jessica Simpson in ‘Mom jeans.’)

Question: Is the description ‘Mom Jeans’ derogatory? Or does it concisely convey an accurate picture of how one is wearing jeans?