Even if they don't make the $50k worst case they will just extend and carry on with the project. but i have faith they will make the $50k easily.
Every one might not be happy with it but when it becomes a thing of necessity they will just have to bear with and let the extension run through. They capital is needed to complete the project you know.
If the team is working on products and if they think they can deliver what they promised then I am happy even though they extend the ICO/pre-sales end date.
You can only speak for your self you know, some persons are so impatient that they might not like waiting for ico sales period for too long