Perhaps adding one female character with a less abbrasive demeanor would provide some valuable data as to how much a companions demeanor influences peoples willingness to travel with them? I persume some characters like this will be added eventually and it would be a shame to put lots of work into characters like Shadowheart or Lae'zel if moat people will end up rejecting them once offered a full palette of possible companions.
Swen already said there will be more classes added to EA, more companions, more races, and features will be coming to EA. How about you just play with the features you have now test them and bloody wait for new content to be added once the current set has had a chance to be tested. It hasn't even been a week for christ sake.
And there is a specific reason why the companions we have were added first to EA. he said the reason in this video. i don't know where, sorry, so you will have to watch it to find out.
https://www.youtube.com/watch?v=S5__muccL1c&t