Regarding the kidnap scene.
You can decide how Orin priorities by keeping her targets as active party members and the targets are as followed; Lae'zel, Halsin, Gale and Minthara, so if you want Minthara napped away make sure to keep Lae'zel, Halsin and Gale with you as active party members.
So if you keep them all as active party members there is also a failsafe NPC for the whole scene, so after speaking to Gortash just avoid going into sewers to get the camp event organically triggered from a long rest, they work for all different camp instances too and given the condition it is quite easy to miss out on this as nothing prevents you from going to sewers very early and thankfully so as I love the players freedom in this game.