Having myself plenty of problems with self-imported japanese games, I can’t entirely agree here…
I rather think that those “easy” games were chosen intentionally for lacalization by G-Collections because doing them was also quite easy - in most cases, the user-interfce didn’t even have to be modified because the choices simply displayed the face of the targeted girl!
So, what remained was translating the japanese text and replacing the CGs without mosaics.
There is a multitude of b-games in Japan that are QUITE difficult. As a matter of fact, an average player like me usually has to rely in these games frequently on a kouryaku!
But those complex games also add complexity and thus costs to their localization!
If a game is as complex as Doushin, what do you guess how many more playthroughs the testers needed for covering the entire text-matrix?
… and whow many playthroughs would have been needed for “Tsukushite Agechau 4” in cpomparison to that?
Plus the more complex games also have more complex stories and thus more lines of text to be translated. The same goes for the amount of CGs that have to be altered!
So, while G-Collections back then chose a way to release plenty of games quite quickly one after the other, they in turn had to put restrictions on the average complexitity of the games that they would bring over. Otherwise, they probably wouldn’t have survived their first year - and never managed that ambitious 1-game-a-month-schedule during their first years!
Plus: the market might not all consist of hardcore-players who want to fight for every single CG - with twice as much playthroughs!
So, they released a mixed bag with many of their games being admittedly QUITE easy simple entertainment and a handful of them being MORE!
However, let’s also not mix up G-Collections and Peach Princess, because even if Peach Princess now sells the G-Collections’s games, they never were involved in their decisions which games to localize.
… and among the real own line-up of Peach Princess’s games, I don’t see many examples for “easy” games at all!