The main and only reason why we are not present in JED catalog (Joomla! Extensions Directory) - is a restriction for adding extensions with any form of encryption. And the protection of several our files is made using ionCube encryption. Such measures go against JED catalog rules.
But there is a reason why we did so. Unfortunately, there are a lot of dishonest users and freeloaders in the internet. That’s why we had to use such complications as a license and encryption, sacrificing our presence in JED catalog.