It should be possible to run scripts as root, but I suggest that ezscript by default should exit with an error:
"Running scripts as root may be dangerous. If you are sure you know what you are doing, you can run this script as root by appending the parameter --run-as-root"

Appending the --run-as-root parameter would allow scripts to continue executing when run as root. It would have no effect when not run as root.