Mike D. might have been the face of GCY, but... he was not the whole company.
While Directors buying is no panacea to what has occurred, I do feel that it shows that his leaving is not the end of the company, that it still has a great team that are showing they believe the company will recover, albeit, it may take some time.
The first example that comes to mind regarding the MD leaving.. if say.... Bill Shorten decided to take a world cruise and retire, the Labor party would somehow struggle on