"After one year and a half, there still are extensive changes require, but in two days the teammembers who signed the NDA's were already able to tell how amazing everything was. " - Understanding a top level overview of a technology and knowing and understanding the details enough to be able to write patent documents are two completely different things.
Most people understand the basics of why Bitcoin is so revolutionary but if you get into hash functions and nonces etc most people wouldn't understand it.