Creating 30,000 fake emails that could pass as plausibly real is a huge undertaking. The trump campaign acted incredibly responsibly by asking the emails be sent to committees and FBI. No one wanted to know if they were real or not.
The big problem is if these emails are real and are not consistent with what has been produced for the oig, committees, and FBI.
If they were determined to be fake, where are they? There is no crime in publishing fake classified information. During the campaign it might have been reasonable/responsible to not spread them, but why not now? They were not published anywhere readily accessible so the only conclusion that can be reached is the entire thing is a fiction and 30,000 fake emails never existed or the 30,000 emails are real and classified, possibly inconsistent with the emails that are public through foia.