Guys I think you are all forgetting the fact that LiL is just the beginning of a larger universe called 'The Wishing Well' where all of Selebus's works will take place. I don't think Kyoko would have any important role in this game at least.
Cmon, Tsubasa's importance was kinda proved by updates, but most part of community doesn't get it. She knows about Yasu's religion (Priestess of Fallen Snow IIRC), she understands importance of Akira, so she basically understands the rules of the divine game and definetly can interfere. If she would not be important, who would?
I had to go back and find that snapshot to perhaps reiterate what I meant.
I am not asking proofs of "Tsubasa being important"; I am asking "what do you mean by Tsubasa being more important than we thought she was?" When it comes down to it, his response brings nothing new to the table.
It could be mean that she will actually be a part of the fuckery. Or, as unexciting as it might sound, it could just mean that she's not just a piece of meat for tit fetish that does absolutely nothing to Sensei's relationship and mental state (which is already proven incorrect).
So once you ask yourself "what does he really mean", you'll soon get to a point where you either consider Selly deliberately foreshadowing something that is either plain obvious or something literally hasn't been implemented yet, or start assigning random and unverifiable importance to her because Selly has spoken so it must be true. For example, I've color coded your reply, and blue means your further elaboration is needed and red means a claim without sufficient evidence. And this is the part I meant "can only be proven by future updates", as I prefer waiting than conjecturing without knowing what direction I should go.
I would go even so far to say what you coded red is false. She isnt even aware of the existence of the timeskips and those rules seemingly can change whenever a god feels like it. So even those who are aware dont understand the rules. The only person i personally would trust to understand the divine rules is yasu, because she is yasu. But i wouldnt trust her to share that information in a comprehensible form or way, because she is yasu.
Kyouko being his most proud creation is just a ploy for the average gamer to be able to feel proud to know who she is. The real gamers know that the actual "easter egg hard to find character" is Shiori.
And if you know who she is you're already a certified big brain or someone that actually reads our essay sized discussions on random stuff that don't mean anything very important topics all the time with no exception!
Oh yeah, I did see all of those after I did all of the choices for lust names, but when it first happened I always aimed to choose something that would make the other person uncomfortable just to see what would happen. That one with Haruka is the one I remember the most because it creeped me out hahah.