People often underestimate what a team of select very skilled people (which seems to be the forte of these guys) can do as a hobby, especially if they like what they are doing.
Imagine you were good at painting, how many good works would you be sitting on top of if you invested all your time playing cRPG into painting.
Yes, but as this is taken from their kickstarter page
"We are a small team of 5 people who have been working in their spare time whenever possible. We are scattered across different cities and even countries. We started work on the game just over a year ago and it's been a difficult journey but we've reached the point where we are able to make it.
To complete the game we need to all work full time and together as a team."
They must obviously know it will take way too long long to make if they don't have the ability to work full-time on it as a team. Right now they all probably have their own jobs and families to deal with, they can't just work on the game like a cRPG no-lifer lol. Making a game, especially a good game, takes alot of work and alot of time. A 5 person part-time team is not going to be making any awesome games in a short amount of time, the longer it takes to make the game, the less relevant it might be upon release, the more dated everything will be etc.
I hope they do have the ability to finish this, but they have made a kickstarter for a good reason.