10. Tone generators don't have an on/off switch and need to be held down.
9. Building 47 cages stacked two high, meaning there is one lone cage? Looks like someone might be a little OCD. (Dr. Tsing, perhaps?)
8. Sky People bone marrow does not provide radiation immunity to their future children. What happens then?
7. I don't even want to get started on how easy it was for Monty to hack their system three separate times and all the basic IT Admin stuff they completely failed to do. (Like setting up alert notifications if there was a change on one of their radio frequencies??)
6. Seriously, what was so wrong with getting the Sky People to donate their bone marrow?
5. They underestimated the Delinquents.
4. 1-minute delay on the backup generator affecting the door lock. If something is that important, you'd have a battery backup to cover during that delay.
3. They completely abandoned their Command Center without redirecting actual command to another location on Level 5. You know, just in case the Command Center was compromised, the enemy wouldn't have access to the life support systems.
2. They underestimated the Blakes.
And the number one reason the Mountain Men weren't too bright:
1. They underestimated Clarke Griffin.