The point is, its custodial. Don't trust ecash tokens unless you trust the mint. If you don't trust the mint, cash out to lightning as soon as you get them. Amethyst does this for you. Then only mint tokens for sending to others.

Ecash needs two advancements: recoverability and mint trustlessness.

Wallet recoverability is in the works.

Mint trustlessness isn't possible yet, therefore you need to find a mint that is run by someone that is trustworthy. You also want to establish trust with the mint owner, so if the mint breaks, you could ask the mint owner for your sats back.