The soundness of the advice depends on the person's specific situation. I've known a person who benefitted from a Master's as the degree gave the person access

The soundness of the advice depends on the person's specific situation. I've known a person who benefitted from a Master's as the degree gave the person access to certain internships, which helped the person break into a specific field that would've been difficult to enter otherwise. Another person who earned a Master's found it easier to get a work visa working in a foreign country with a better market for that person's field. However, each of these people had a specific goal in mind with getting their Master's. The person who asked advice could also find it helpful to only consider a Master's if they also have a specific outcome in mind, served directly by pursuing the degree.