Help me with some rules clarification

Help me understand some rules.

Question 1:

If Venom uses Ingress Move, and a unit inside uses Rapid Disembarkation, is it possible to use the Aerialists ability to embark that unit back into Venom?

Why I'm confused:

- Rapid Disembark mode transfers all Ingress Move restrictions to the Disembarked unit.

- Ingress Move prohibits the use of any other type of move.

- On the one hand, Embarkment isn't listed among the "types of move" (unlike Disembarkation).

- But on the other hand, the "Embarking" rule has the restriction "That unit was not set up on the battlefield this turn."

- The Aerialists ability allows you to embark a unit that was disembarked the same turn, but it doesn't remove the "was not set up this turn" restriction imposed by the "Embark" rule.

As far as I understand, you can do this in 10th edition, but maybe I'm missing something, but it looks like in 11th edition the Venom rule doesn't work in the battle round in which Мутщь comes out of reserves.

Question 2:
What happens when Lady Malys uses her "Mind Like a Steel Trap Ability" ability but the opponent doesn't have enough CP to pay for the Stratagem cost?