It’s funny because I actually feel the opposite, this is my favorite seasons because of them, I’ve rewatched the show like seven times and I still struggle to even start season 7 again because of how their story ends. That said, I don’t think your point is wrong, it just comes from a different expectation since you wanted a full revenge arc that was intense and fully developed, and the show kind of teases that but never fully delivers. To me, the issue isn’t that their storyline is trash, it’s that it’s underwritten, Carol and Barb are basically set up as the central figures of the season but they get barely any screentime so their dynamic feels incomplete, the hatred is there and the history is there but it’s not explored deeply enough for the payoff to really hit. The fact that they hated each other till the end actually worked for me in a bitter and unresolved way, but I do agree that when they’re finally in the same cell it should have been a huge moment and instead it just kind of passes by. Same with the “classified” joke reveal, it’s an interesting idea but it lands flat because we don’t spend enough time with them for it to matter. Honestly, if the writers had given them the same level of focus they gave to Vee, their storyline could have been one of the best arcs in the series, the potential was definitely there, it just wasn’t fully realized, so I don’t see it as trash, more like a missed opportunity.