DD2 is a single player game, those generally don't maintain their active player counts forever. It peaked at 228,285 concurrent (not total) Steam players which are pretty good numbers.
Even if we do go by concurrent players, Black Myth Wukong had one of the biggest launches in Steams history with a peak concurrent of 2.4 million players, and that hasn't been cracked either after five months.
Apparently the people doing this kind of work have been disproportionately in Eastern Europe and what's going on in Ukraine has so disrupted that part of the world that they currently have bigger problems.
So then you're waiting for either that region to stabilize or demand for cracks to cause people somewhere else to get into the game, and in the interim you effectively have a temporary supply chain issue.
But it's hard to give credit for the ravages of war to the DRM pushers and it's not at all obvious that they've secured any kind of permanent advantage.