1.Why didn't Edith/Mama kill those two trackers that found Victoria and Lily when they went to her cabin? She killed the father of Victoria and Lily (which arguably was a good thing, which leads to the next question) and Dreyfuss when they walked into her cabin? Why where those trackers not attacked at all? 2.Why did the father of Victoria and Lily want his brother Lucas to save his daughters from Eidth/Mama? He didn't have some good intentions for the the girls himself. It was almost entirely his fault that those girls ended up in Edith/Mama's hands in the 1st place. In-fact he was on the verge of killing them before Edith/Mama intervened and killed him.
I think the answers to those questions are open to interpretation -- different people could give different answers. I think:
1. Mama killed the people who threatened the kids, or the people she was jealous of or angry at. The trackers weren't dangerous in any way.
2. I think Lucas's vision was more a plot device than something with deep meaning, just something to motivate Lucas and get him out of bed.
The father wasn't really bad. Murdering children is obviously bad, but he was going to do it so that they wouldn't suffer and die in his absence, since he was going to kill himself. He'd had a really bad day and work and wasn't thinking clearly (lol), but basically he was going to kill them because he cared.
If you really want to make sense of it, and who knows if this is the case or not, his situation is a lot like Mama's. He was going to do something but it wasn't done all the way, and now he's a tortured ghost.
"...but the Trackers took Mama's "children" away from her. Isn't that a threat..."
Fate plays a big role in this film. Notice how Annabel is happy that she had a negative pregnancy test--she thanks god for it--but guess what?
She becomes a mother anyway. And it is Mama that makes her a mother by giving Victoria to her.
Not incidentally, Lucas sees his brother in a vision, and when Lucas finds that spot, it is a railway over a road and a train passes by. The train is a symbol of Fate. Next Lucas meets Annabel who is searching for the girls, and together they face-off with Mama, who is not an ordinary ghost.
Celebrating 100 Years of DADA * Feb. 5, 1916 * Zurich