Well, the complaint never was valid. First, there is no crime commited in the long complaint. Even if we imagine that all the facts are true, it was done through a law. It is a political matter that cannoy be judged. Second, Illegal phone-tapping invalids a criminal case. Third, to make the compaint before any judge instead of the judga of the AMIA case is also illegal.
The AMIA case was since the beggining like this because the main problem is that the principal suspect is the former President Menem. If you see who is under prosecution in that case: former head of the secret service for boycoting the investigation, among others.