I feel like the dev mistakenly attributed CCTV 1's success as due its voyeurism aspect, and hence he double downed on it and created a pure voyeur successor. Maybe he instinctively thought it couldn't have been primarily the NTR aspect because it is afterall a polarizing niche.
But to speak more generally, i always instinctively thought that voyeurism is a perfect match to go hand in hand with NTR storylines. So i was kinda surprised that people here consider CCTV as a supposed breath of fresh air, since i thought such was supposed to be formulaic. I had this thought from years ago, back when the game "Urban Voyeur" (by Cesar) was in development and HC 2 was in its very early stages. I registered onto this site and made use of the Search by Tags feature, only to find very little match when i try the combination "NTR" and "Voyeurism".
It is observable that many devs tend to make use of the device of voyeurism very sparingly. As if out of necessity, just as the means to pacify their patrons' demand for periodic h-scenes, which are most of the time lackluster essentially-repeated teasing scenes anyways. And sometimes this is also at the cost of diminishing the suspense/flow (especially in stories that commit to mystery NTR), because gooner patrons/audiences would expect a steady progression of corruption. And i believe this is primarily because the devs are stuck with only 1 or 2 LIs to work with. So i think this scarcity or aversion to exploring voyeurism to the fullest is mainly due to resource and logistical limitations (such as drawing/posing workload when attempting to have an array of LIs).
I tried writing my own
narrative framework that attempts to fix this problem, which is a story that is just as much NTR as it is voyeurism. I will try writing the descriptive summary here, since the original is very long: