This Glamour Magazine editor said something that a lot of people think. As wrong as it may be, a lot of people feel that afros and locs are inappropriate or unprofessional at work.
Problem is, for most of us, changing our hair texture to something more "acceptable" is totally unhealthy, time consuming, and expensive. Know what though? A lot of these guys who think straight hair is so much more professional don't even know that. A lot of other people also think it's perfectly normal for women to undergo elaborate routines to look "good."
If you work for a company where your "higher ups" share this lady's opinion and you disagree, then you have a choice to make. What will yours be?