it's not unilateral exit. “Emergency Exit Kit” isn’t what it sounds like. it’s not a normal backup or recovery method, it’s a proprietary workaround.

it only works if you still have both keys (phone & hardware) and if you can run custom Android app (doesn’t work on iOS. you need to sideload an Android app just to recover.) from GitHub to decrypt a PDF they stored in your cloud.

lose your hardware, and it’s useless.

lose access to your cloud account, also useless.

if the GitHub tool changes, breaks, or disappears, useless.

you can’t import it into Sparrow, Specter, or any other standard wallet. it’s a closed system that depends on Block’s format, their GitHub code, and your specific device.

that’s not a standard or trustless exit, it’s a walled-garden escape hatch for when their infrastructure dies.

real self-custody means seed words, open standards, wallet hardware/software interoperability, and no dependency on anyone’s servers or proprietary software.

the EEK is clever engineering, but it’s not self-sovereign Bitcoin custody.