The word "professionalism" here a common dogwhistle for "obedience" and "conformity". It's use in this context is almost exclusively directed towards women, but also sometimes to black men.

When Micheal Burhnam disobeys orders it's "unprofessional", when Worf or Picard does it, it's "bold". When Ake sits down unconventionally it's "unprofessional", when Riker does it, it's a quirky and beloved part of his character. etc. etc.