That review also fails to consider that 'just viewing' the CG of any game is generally useless. Without any context none of these CG's of almost any game are worth anything.
Still frames with various small changes in each CG 'set', depending on the game that could be 2 to 20 variations.
Naaaah, I don't see much use in ripped CG sets of eroge. And if anything, if you really wanna go that route, the only ones that might be worth looking at in that scenario would be CG's of VN which are on average a heck of a lot more elaborate than most any Ero-RPG out there.
You're better off going through an H manga at that point and you'll get more eye candy in quick succession with more value.