Understandable, but in the long run it was already stated that doing that would increase kill times, which may be desirable, but it takes away from that was well. They could buff all day long and that would result in quick as hell firefights that would rely more on twitch reaction instead of having time to think, shoot and still aim. I mean with that kind of balance you could just call one shot pistols completely balanced, but it just isn't fun. So to avoid this situation, it is reasonable to believe that lowering damage to a standard across all weapon behaviors would keep kill times appropriate without removing weapon aesthetic variety.