First, thank you for making this thread, it's greatly appreciated.
However, I highly disagree with your last point. Rockered skis in the park, let alone park specific rocker in the park, functions fantastically. As someone who has been riding park for about 8 years now, (unimpressive claim) I've ridden a lot of skis in the park, and I can safely say I will never ride a non-rockered ski again.
I've spent a season on a-bangs (which I broke before the end but wtv) and enjoyed them, but they do not compare to rockered skis I've been on like my bents or halos. Maybe it's just my style of riding.. But If the concept didn't work well, why would successful companies like Armada and K2 both have several park specific rockered skis? Not to mention snowboard companies which have been doing it for years. This is not a gimmick, it works. Honestly, I'm surprised an avant-garde company like Line wasn't amongst the first to put out a rockered park ski...