Yes! Non-custodial is accurate for majority of "DEX". We got to wean off these terms. Took time to wean off "revolutionary" but I think we'll get there with "decentralised" - they have their places but they can be very misleading these days. Fully decentralised is a long way off, definitely agree, and may never be in fact what's desired even if possible. I do feel that we're closer than we think though, with atomic swapping, off-chain channels and 2nd layer stuff, if they can all inter-operate and every architecture is made open source and public domain, we can be close enough.