This former employee, who now works for All Out by the way, cannot see the benefits of the Q Software solution. Perhaps that may be why he is a former employee and not a current one!
He is clearly very out of date with security issues in EnterpriseOne and how the Q Software solution addresses those issues.
I understand the issues are well documented in an Oracle white paper, which they co-wrote with Q Software, and in which Oracle recommends the Q Software solution. I suggest you contact Q Software directly and get this white paper to understand the facts.
I am told that Q Software also puts their software through a rigorous testing process, including having Oracle test it, so the quality is good too, which is reassuring.