The funny thing is that I actually watched both those episodes last week and was thinking the same.
I never really understood why he killed Yuta. he could just have stunned her. Was he p***ed off that she wasn't what he hoped and expected, that the girl he actually had strong feelings for turned out to be a ruthless killer, obsessed with the clan war revenge thing? Or was Yuta that dangerous that it was necessary to eliminate her?
As for Finn and "The High Ground", there were lots of interesting things in that plot. Very thought-provoking and one of my favorite TNG episodes.