I don't really understand the connection of the app to the coffee flavor. Also upon checking, the design and the choice of words are really something I wouldn't be impressed with.
I have a sort of feelings and emotion with this bounty. If they really wanted to catch people's idea then they must properly choose the right words, the right designs, and the right business name to convince someone like me. I also tried to look at the founders and I can see that they are lack of experiences. Please do not get me wrong but it is my personal opinion.
You make a solid point. If they cant properly convey their message to users they wont end up driving many investors in. It's about selling it to everyone not just those experienced in the crypto world.