They battles in the game were originally super easy. They were ramped up a bit with the addition of companions. Also there were some balance tweaks. The ranger at the moment doesn't hit as hard as they should. I'm sure this fight will be tweaked since it's early on and shouldn't be too difficult. in the earlier Alpha you could pretty much two shot both of them. I think it needs to be a little tougher than the earlier build but a tad less so than it currently is. And again it could just be the fact that combat isn't balanced yet.