I had no idea why they went with the change until I learned about how necissary they are for some people. This one guy had a 94 and wanted the newer ones. I don't know if he traveled on gravel roads a lot, but they kick up rocks so much that on the 94 he had paint chips on the ground effect AND the fender. The fender as we know is steel and can rust if not maintained. He said that it's been repainted several times and that the newer piece would protect the fender from rock strikes.
I dunno, I've driven on all kinds of roads, even off roaded it a few times, I only get rock strikes on my rear bumper, inside the wheel well area.
I love the 94 look so much that despite all my appearance mods, it's the one thing I want to keep original. Taillights don't count because they currently don't make anything on the market that I want, but am trying to get something developed