Cowboy to Reed: Drop you gun or I shoot her (T'Pol)
Reed shoots T'Pol then shoots the shocked cowboy.
A very Klingon solution to the problem. Except that the Klingon weapon wouldn't have been on stun
About the lack of technological advance. They may have had 3 centuries but what was their population? 6000 when Enterprise finds them, how much to begin with?. How much effort have they had to spend on anything but survival and expansion? Retaining the tech that they did would be impressive.