I think it's the same approach they took to everything about the companions in Inquisition, and it's one that I approve of.
They didn't pick and choose attractive features for the faces, they designed the faces with the character in mind, and didn't care if some parts were not conventionally attractive or looked awkward, as long as it fit the character.
They didn't worry about having the team be perfectly gender balanced, but chose the companion concepts they found the most engaging.
they didn't plan out an evenly spread set of bisexual companions so that romance options could be completely equal and uniform, they designed the characters with fixed sexualities in mind and stuck to them, likely sorting out romance options later.
And finally, they did the same as the above with race. No artificial- pre-determined distributions to enforce complete equality, go with what fits the characters and do some alterations afterwards if things are just a bit too skewed.
It's the same character-driven approach applied to all aspects of design, and it puts the characters themselves above everything, from appearance to romance options. And I love the fact that they are doing this. It feels like a group of truly organic and disparate characters who come together and work off each other, not an artificial lineup of dolls each tailored to fill a specific hole on the cookie-cutter sheet.