Perhaps. Depends on the nature of what they hacked in the pirated version, and if they can find a way to apply their trojan in a way that does not involve a full download.
One thing this event helps to point out, is the potential dangers of open-source software. Yes, this trojan was placed into "pirated" software, but it could as easily have been placed in something open-source, and downloaded by its victims on that basis.
If the hackers are content to achieve a series of "occasional infections," similar to what happened here, then providing links to their own versions of open-source software can provide that access.
Does this only apply to downloaded executable programs, or does it also apply to picture downloads - like from YouTube & picture files?