I understand your point. I also follow the xseed forums :)
However the idea would be to see if the number of pre orders would justify the printing of physical copies. Im not going crazy over this, I am much more concerned about actually playing the games.(Yay for the Investigations 2 fan translation btw)
Pirating wouldnt be the only issue, I think a bigger issue is the lack of marketing and advertisements for the series. I had no clue the games existed if it weren't for the youtube rpg community. Also they arent really available in my country for example(It's european), the games are just not accessible, that's why perhaps some people resort to pirating.
The digital release will solve the accessability issue atleast.