It's so ironic when I think that this episode had some of the major WTH moments that Arrow's Season 3 was infamous for.
I'm talking about how they just had team flash kill Atomic Smasher without giving it an second thought and how they just had Henry leave Barry like that. He may actually take away the title of "Worst Fatherly Decision " from Malcolm.
I wasn't sure if I was bothered unnecessarily over it. I mean, I remember Atom Smasher as a hero. Killed like a punk seemed..pointless. It also seems odd because ARROW is the one with a history of killing. Flash was a cop who followed those rules whenever possible. The furthest Barry stepped out was brainwashing crooks like The Top so he didn't have to kill them. And this was a Big Thing. Now, hero-in-another-universe Atom Smasher is on Barry's kill list.