To play the devil's advocate I don't think you should expect all of your players to also have read all the interviews, news articles and pre-release blogs/news posts before they start playing the game.
I don't really have a problem with the current companions' personalities, but I can see why they might turn some people off.
This is true but I thought we are supposed to be testers first and players second.
Evil and neutral characters do not have to be utterly unlikable - you chose to make them that way.
I disagree that they are unlikable, they just need the player to have an open mind.
When the game is released, it will have all the companions. Maybe they should have made the Early Access part more clear?