I believe this should be Severity: critical. With the current set of packages in unstable all it takes is one apt upgrade to instantly get an unbootable system with no warning.
To get a working dracut I packaged version 101 of the dracut-ng fork and included this commit as a patch: https://github.com/dracut-ng/dracut-ng/commit/04b362d713235459cff1f370efb4cd5e36e4a358 The result produced bootable initramfs images with systemd 256-rc2 in a VM. Regards, Simon