I don't vividly recall the scene. What was dissonant about it?
Can't be blow darts; can't be killing.
You're missing the point. Indy kills one badguy in the entire film. I'm surprised they didn't give him a walkie talkie to clip to his belt.
Ark: kills shit ton of Nazis/Mongol thugs in various amusing ways throughout
Temple: kills shit ton of Triad/Thuggee in various amusing ways throughout
Crusade: kills shit ton of Nazis/Arab dudes in various amusing ways throughout
Skull: kills one fucking tribal guy, albeit amusingly, half-way through the film
One of these things is not like the other.