During the final fight scene in the Commander's throne room, grounders continually storm into the room, yet there are multiple shots that show the same amount of bodies are always on the floor.
As Clark stands before the kill switch, ALIE 2 keeps her abreast of the time left before the kill switch will disappear. The final "10 second" warning took 33 seconds of the show and 15 seconds of actual time on the space station.
Blood coming from Clarke's nostrils, she fainting, she having a seizure, flocks of people chasing Clarke and Lexa with intention of harming them, even killing them, Lexa killing many people with her double swords - Whatever happened to the catchy marketing phrase of "no pain or death in the City of Light".
If the Kill Switch in the City of Light can be operated only manually, then why they spent so much time to pretend as if Raven and Monty could have operated this switch through remote connection when they had hacked into City of Light server. It is logical that no server has a kill switch that could be pressed through remote connection otherwise any hacker worth his salt will destroy everything in a fizzy just to show off his/ her hacking powers. A Kill Switch has to be operated only manually.
Elie never used the issue of "world going to end in 6 months" to make her new recruits come running to her - for salvation. If she has told or shown the reality to everyone, the wouldn't have needed to coerce, threaten, blackmail them to join in her crusade. Then it would have become the crusade to save the humanity and all the person who become antagonist just because of Elie's high handed tactics, would have come together to solve the bigger problem jointly. Elie failed just owing to the wrong methods she used. So much for the wisdom of an omniscient, omnipotent, best-ever AI developed by humans, she behaved just like a school bully.