I understand they want to evolve and be "mature" but The Maine has isolated a core fanbase that started during CSWS. That's why they sell less and less records with each release. I respect Pioneer and thought it was a great record but Forever Halloween are literal b-sides from Pioneer. I don't see The Maine getting any bigger than where they already are.
Forever Halloween actually sold more records in it's first week than Pioneer did.
The problem that you saw is they left their label then they didn't do that good of promotion for Pioneer. But they learned through it and they did a hell of a lot better promoting Forever Halloween and that's why it sold so much more. Plus I think a little bit of it was people trying to adapt to The Maine's new sound and perhaps they're getting used to it.