ohhh, maybe similar to that public show idea then. Maybe much later when Asuna and Inoda are comfortable enough doing IRL Inoda sneakily records while hiding their faces somehow and it slowly becomes popular amongst the people around them. Maybe even Klein who ends up sharing it with Kirito. Kirito obviously is attracted because the body is pretty much identical to Asunas and ends up even “donating” or simping to the channel. Funny coincidence could be he contributes, and the uploader (Inoda) posts a photo of underwear he bought for her Asuna using the donation which appears in their next vid and Kirito eventually ends up seeing the very same underwear in person when he visits Asuna’s house. In game I can only imagine it being similar to part1 probably selling like a memory fragment that puts him in Inoda’s POV, hence he has a reason to have an idea of what’s going behind his back. Even better we get his actual thoughts on what he’s saying and justifies saying “my Asuna would never do this (like the bj)” for example.So in Part 1 there was no blog but a public forum and Kirito didn't know Inoda was in it. He could see Asuna and Inoda doing something in his room but didn't know what it was. He didn't actually see the videos from Inoda's and Asuna's Room or he would have stopped them immediately. Those were scenes only we the player could see. There was no reason for anxiety and suspicion in Part 1. The room scenes made no sense in-game so they were replaced with Administrator's shrine in Part 2 as a way for Kirito to see what happened but not remember anything and losing all suspicion afterwards.
If you want to see more interaction between Kirito and Inoda to enhance the NTR experience then I agree. It does feel Kirito is barely a observer when he should be a unwilling participant. I think some of the things you want to see will happen when Inoda becomes bolder and more in control of Asuna. Also in Part 1 Inoda sold the videos of him messing around with Asuna to FOG video store and if Kirito bought them then Kirito was unknowingly funding Inoda's Lustiful Night. That is fun to think about!
I just want Kirito to slowly build up the idea that “something” might be going on but either actively denies it or slowly starts to enjoy it. So we get the he doesn’t know or he does and like it ending.