Well, $ 13 million is a hard cap - it's not so much. There are all chances to collect, not to mention a soft cap. I've seen much, much less promising projects with a soft cap much more than yours! Good luck, the idea is excellent!
In this market, it will not just be achieved. The idea is not new, the team has many interesting projects with a similar idea but that they could not. I hope this team learns from mistakes and can do everything right to not fail like other projects in this area.