The "you'll have 2 updates in September!!!" promise turned into "guys... ehem... you'll probably have to wait until late October for the next update".
I agree with armion82 that NTR is a time-consuming side route (to put it mildly, I think that most of us couldn't care less about it) so it is still a relief to come across such a promising animation as the one with MC and Jess. It looks amazingly good and makes the wait worthwhile.
You bring up a good point about time constraints and I suspect the dev(s) hadn't put enough thought into that aspect initially. I agree that development could be further along if they had streamlined a few things that seem to unnecessarily increase development time without much to show for it.
If there was only 1 NTR opponent instead of 2 that would cut the development for the NTR path in half. If they didn't have scenes that were identical except for having a choice of 2 different clothing options, that would cut rendering time down and allow them to give us a better variety of images/animations (or a larger number of similarly complex events) instead of duplicate images that just have a different outfit.
As an alternative it might have been interesting if the battle between MC and his two NTR potential opponents had both played sequentially instead of it being an either/or choice. So maybe initially Christine takes the job with Silver no matter what. So you always have the business trip with Silver where the MC either blocks Silver or not. Then either you or Jess convince her to work with Jess instead after Silver's scenes. Then the scenes with Robert and Jess happen with the MC either coming out on top or not. Then the Yacht.
I wonder if the NTR fans care whether it's Silver or Robert that's the focus (or both) as long as it's not the MC? In any case this is still one of my favorite games on this site so I'm content to wait for the next version. Based on that last animation it looks like I'll enjoy it