If you draw up the averages for said games the vast majority that were hit, were visual novels.
PQube has the most affected games out of all their recent releases. More than five times the amount compared to NISA, Atlus, Xseed, Bandai namco, Spike Chunsoft, and ArcSys combined.
The rules may possibly be vague(since there's no publicly available paper you can sparse out) but at this point, someone is intentionally stepping into land mines either by sheer stupidity or for other means(i.e. free advertising).