Not sure why they did away with them. All I know is they were fine until I decided to strip the original carpet off and install the stuff I bought from Stock Interiors. I think part of the problem is the new carpet has a smooth vinyl back as opposed to the thin foam that the original had on it. I couldn’t strip that stuff off for the life of me, it was glued so good it only came off in small pieces and it was still in perfect shape. It just wasn’t the same as the carpet on the floor. Lesson learned.