Dodge got really boring really fast. I don't find it interesting or exciting when the bad guy always triumphs until the very last, but wait! They don't because we need a cliffhanger in case we have another season! BORING! I didn't get any sense of motivation. She just wanted the keys for..reasons, and liked just randomly killing people or doing bad things just to show how evil and "otherworldly" she is.
That would have probably been the best idea to try. And it didn't have to work, since the show wouldn't want it to be that easy, but at least they should have tried. That would have been my first thing to try. They proved with Eden that they don't have to be right there, so they could have hidden from her and tried it and if it didn't work they were at least hidden. But no, like you said, they just seemed to forget about it.
Other than how ridiculous the villain was, this what frustrated me most about the show overall. I still don't know if the keys are good, evil, where they came from, how the Locke family ended up with them. Did the man how built the house build it to hide the keys, to use the keys? Was he good, bad?
There were so many good, interesting ideas here but the follow through on them was terrible.
For the most part I liked it, I think that is due to that amazing house, I love spooky Victorian mansions in quaint New England towns, and the kids, as stupid as some of their actions were, I found them engaging enough and thought they did the best they could with some pretty contrived writing. I just wish the story had been better thought out.
I think they could have given us more of an idea of what the keys are or where they came from and why they exist, wrapped up the story of Dodge and yet left an opening for continuation. Kill Dodge but have Eden now "infected" with another bullet demon, have the kids discover what they are up against, and realize that they may have to fight again, so next season opens with them studying up on the history of the keys and what not. The flashbacks could be to their grandfather's story rather than Dads. I just wish they'd finished this one a bit better.