They promoted their business here, and collected money for their grand idea here on bitcointalk. After being extremely active, once they realized they would not be collecting anymore money here, they just disappeared. Whether they are working on the project or not, the fact remains they are not supporting the very people that financed their whole fucking operation. How hard is it to log in every day or two and make an update? It was not hard before the ICO to do so!
Actually you're wrong here. The Augmentors devs were never active in Bitcointalk before, during and after ICO. See the length of the thread, only 44 pages.
Sadly they were not active on Twitter and other communication channels so they gathered way less founds as they could with such a good game. But that was only a profit for those that invested in ICO back then. Less coins was sold, bigger share we got.