The whole process is a distraction and doesn't bring any value. The downside is that you'll waste a lot of time filling templates and doing stuff that doesn't matter at this stage. You may also get demoralized if jury/public doesn't get it and thinks its trash. For all you know, they might not be the segment you plan to target..
If you are serious - Move forward and build the product and show it to real customers that you plan to target. That's probably the only way to know if it'll work or not.