Independant of how B::DeObfuscate was implemented, it's sole purpose is reverse engineering of the products obfuscated with
and others (not for reverse-engineering the Perl-Obfus itself of course - please feel the difference!). You try to imply that one may use nuclear bomb for anything but bombing. Have you ever seen in US shops master keys e.g. for Volvo car's locks? B::DeObfuscate is the same.