The knife that stabbed Finn went in horizontally. After it was removed and stitched up from every episode on it was vertical stab wound?
Abby getting a 100 year old pod repaired by Raven to go to Earth with her - this brings the question - what if the Earth has rejuvenated enough to make entire Ark population survive? Even if so, how would they go from the Ark to the Earth? They should be having enough spaceships and fuel to carry all the persons to Earth. So, if they had such a fleet, why didn't Abby/ Raven take one of those which would be in a far better condition to go to Earth. And if that 100 year old pod was the only one they had, what is the point in figuring out whether Earth is livable or not, because they cannot take Ark population to the Earth.