I don't believe there were any liability issues around Pink Starfish at all. The trail was in the middle of being cleaned up when it was decommissioned. I inquired at the time and was told it was entirely due to a threat to native species (frogs).
I'd hate to lose old school gnar, to me Bookwus and Grannies are perfect as they are but I realise it's not for everyone although Kirkford and Boblsed aren't for everyone either. I certainly avoid them and if they represented the whole network I wouldn't ride Fromme at all. Don't forget Lower Executioner flattening too, that was half gutted the last time I rode it.
I always wondered where some of the Executioner features went, I stopped riding it for a few years and when I went back it seemed different. Guess that's been explained.