I fine with this game having an on-line activation process, but what I am not fine with is that it is only released on CD. Honestly, if you have a on-line activation protection on it then there is no reason why it could not be released through Getchu-dl, DMM or some other sites. The only thing I can think of is that these sites take a commission (naturally) by distributing the games and advertise it on their site.
I know Anim, along with Ail and some other companies are struggling right now, but limiting a game to a couple of thousand CDs and not releasing through DL-sites because the might lose a percentage of the intake is just stupid. The least they could do is have the DL version come out a couple of weeks after the CD version.