>"In the end, we intend to relieve designers from worrying about fabrication so that they can focus on aesthetics and function"

I will argue that the foremost problem in the discipline of design is that many don't 'worry about fabrication' enough.

I think they agree with you, and that's why they're doing what they're doing:

> This is an important development because one of the biggest challenges in design is making sure that a shape is actually buildable.

The article is saying "we propose a solution to this problem".