I shall post as angels might fear .-)
"First impressions" are absolutely critical - they send subtle psychological messages. And I always hired with a priority on fitting the work culture of my high tech lab group, critical in any stressful work environment where a multitude of complex STEM R&D issues had to be coordinated and interact with broader corporate product program strategies.
In this particular instance the author comes across as an in-your-face Jamaican - before any professional achievements register with potential clients, ESPECIALLY Bay Street prima donnas ! We may not like it but that is the ( unintended ) message. Writing this article doesn't help - it merely confirms her focus, and is perceived as insensitive to "business suit" client cultural expectations. In our case we had a rather foot loose informal dress code - but I insisted on a high level of competence and professionalism in our work, STEM integrity, reports, presentations, department culture and trade mark.