I found this episode to be rather good, except for the abrupt and hurried ending. I also thought it strange that the alien entity never communicates at all during the episode, leaving it's origin and composition a complete mystery, which I found a bit out of character for a Trek antagonist.
More importantly, there are still 40 Klingons abroad a undermanned Enterprise...even without the aid of a warmongering alien, the Klingons would have their own motivations for disposing of Kirk and friends now that there is no outside force stopping them from bringing the Enterprise back as a trophy.
Before you guys come out and say I missed the point of the episode...I didn't. I just really hate loose ends, especially when 98% of the episode was top tier and then it just jumped the shark near the 50 minute mark.
More importantly, there are still 40 Klingons abroad a undermanned Enterprise...even without the aid of a warmongering alien, the Klingons would have their own motivations for disposing of Kirk and friends now that there is no outside force stopping them from bringing the Enterprise back as a trophy.
Before you guys come out and say I missed the point of the episode...I didn't. I just really hate loose ends, especially when 98% of the episode was top tier and then it just jumped the shark near the 50 minute mark.

It wasn't altogether made clear what happened now that the alien left. We saw no swords turning to phasers and we can only guess that the change in metal composition of the bulkheads Scott referred to was reverted...
)