Amethyst uses Lightning and is a pretty complex project. Take the Lightning use and the complexity and what do you get? A high likelihood of deep state funding, which means low likelihood of rapid Monero adoption.

Amethyst is governed by nostr:npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z, forking is ungovernable