We can talk about this in the MCU discussion thread and I asked for help finding it there since I'm having trouble and it's likely burried pretty deep
This so far is the only thing close to ir I could find:
www.inverse.com
When explaining the character in-depth, and specifically the casting of Brie Larson, Feige reveals, “With Captain Marvel, who has powers that approach a level that we haven’t seen before in our films, you need to counter-balance that by finding somebody who is also very human and very relatable and can get into a groove with the audience, where they’re willing to see her fly through the sun and punch a moon away from a spacecraft. At the same time, we need her to land and have relatable flaws.”