A case of lack of communication between the marketing team and the rest of the devs, maybe?
Trailers were always more of a concept versus the ingame material that is canon. For example Jacques Villareal was a womanizer in the trailers Vs. childish in the game, they cut two of the Renegades, Morgan was a YA in a relationship with Paolo Rocca and Julia Wright in the trailers was an airhead, whereas her ingame traits suggest a resposible, goal oriented person. Sometimes I go with the trailer reality, sometimes with the ingame one, so just pick what feels more in-character for Ash.