Spoiler: Cheese 'n' spoilers. Finn was a trained killer. He never once hesitated to kill his former comrades when he realized the true nature of the First Order. As for Han, we've known from the beginning that he's the kinda guy who shoots first and asks questions later. Plus, remember that Phasma was part of group that had, just hours before, murdered billions of people.
Spoiler Fin did seem a little too eager to kill the first order What the heck, how is my post not ten characters.
Spoiler: Don't think these have ever been used so much for actual spoilers Exactly, that's what bugs me really; the whole reason he leaves is because he hates the First Order for basically kidnapping him as a child and then trying to condition him, so he knows the same is true for other stormtroopers; he knows they're not just willfully evil, yet he seems to kill them without remorse. Also, what finally prompts him to escape is the brutality and pointlessness of wiping out that village and seeing his comrades dying in front of him, so why after that is he completely unfazed by it? That really is my only complaint though
Spoiler: Snape kills Dumbledore. TEXT IS HERE I wonder if you can leave spoilers blank. Edit - No. No you can't.
The Matriarch has both FTL and time-travel capabilities, so I'd say they're pretty much equal. Speed doesn't matter so much when you can time-travel.
It's not really overrated, it's just commonplace in many sci-fi and fantasy settings. "As such, it would be unusual for the Matriarch NOT to have the capability."