Yes, Leo would know what is Nasdaq's concern, if he asked them, and he probably has. He certainly has an idea, since he knows what additional info they requested and that would likely relate to what is holding up the listing.
Exchange listings have governance rules for a reason: they want the stocks listed on their exchange to confer secure rights and transparent value to their public owners, who are the end-customers of the exchange. It's why they insist on - in addition to full SEC reporting - an independent board, audit committee, etc... They also would be concerned with the public shareholders' rights to the company's intellectual property. I'm sure the Aruda affair raised their eyebrows. Perhaps the Kevetrin revenue deal is causing them concern; it may be unusual. Who knows.