Is there a one pager available so we don't have to read entire WP?
I do not think there is, but is it so difficult to pass through the WP
Well people don't have a lot of knowledge so one pager summarizes the project nicely.
Understandably, but basic information can be obtained from the home page, and in the end if anyone is interested in the project he will read the WP
If you plan to invest you better get deep into the technical documentantion not to muss anything. You better be safe.
That is why these whitepapers exist after all - to provide a good base with some technical data about the teams approach. Any serious investor should study a wp.