Ann: Resignation of Non-Executive Director, page-40

I can only speculate as to why Domenic resigned.
A couple of scenarios come to mind:
Maybe the board chose to have that hard conversation with Dom, which resulted in Doms' resignation. If so, that would indicate a culture of accountability at Unith and a display of solid leadership.
Maybe Dom informed the board of needing to free up more funds and the intention of selling more shares when progress updates correspond to a significant rise in share price. Therefore resigning to avoid the negative sentiment that can result from such a ASX announcement.
Who knows, if either speculation is on the money it is a positive for Unith.
So, Solid leadership and given where Unith is in its development, a solid quarterly.
Upwards and Onwards.