I disagree. I was initially devastated when at first I thought Linden was just going to reappear only to disappear again and leave Holder in the dust. Sure a gut-wrenching, heart-breaking end would have made sense, given the prior tone of the show, and I would have ended up shaking it off and being satisfied with a bittersweet ending but hey I squealed when she showed back up in the end. Yeah, so I bought into the cheap happy ending but like you said I’m tired of bittersweet, depressing endings to TV. Despite their flaws, I’ve been rooting for these characters from Day 1 so I’m glad they found a happy ending.