Ah finally got around to going back through after I lost my save, was rather fun seeing all the setup done in chapter 1 but I notice that for the most part chapters 2+ don't have as many foreshadowing moments, a lot more cause and effect things that feel weird in the moment but very quickly get addressed (guess its the nature that chapter 1 was intentionally hiding Myths so it doesnt feel weird), theres obviously still some but not nearly as many when you know the direction things go. One of the big ones that wasn't addressed again is that Satan/antichrist is apparently real and that Daiki isn't the one who should tell us about him, but given what the MC is imagine theres going to be a call back to that sooner rather than later (and if not now you can make it one :D)
As I've said before love the game can't wait for more.
The frequency of foreshadowing naturally decreases the further the game develops, seeing as Ren (and thus the player) uncovers more and more secrets. There will always be at least a few things, but never as much as in the first chapter.
Other things (like the one with Daishi you correctly pointed out) take a long time to get addressed, too, since they're either low-priority, extremely important, or dependent on a slow build-up.
The Daishi one, for example, is one of those that need the slow build-up. It's already been "addressed" a few times since when it was first mentioned, albeit not in a direct way. You'll see what I mean when everything gets unveiled eventually. :P
Thanks for your kind words, mate :)