Until we solve all the scaling challenges (both technical and economic) and ux challenges, a lot of people will prefer a custodial LN wallet. If they’re going to make that choice, an ecash-based wallet is more private. Still custodial, but more private.
Nice cool feature about cashu is how easy it is to spin up. So you can uncle-jim a private, custodial wallet for your family/friends/community (you manage the channels, etc)