I'm not surprised if some people didn't get it (especially if they didn't actually play through the picnic). I'm arguing against people claiming that there was nothing to get. And Jill doesn't cut ties with the MC. She decides to not be his girlfriend. She describes thier relationship as a nice friendship in Episode 9. That's not cutting ties.
Also, it's not a matter of her being understanding or not. Shazba went over this at length. The circumstances are very specific. But the power of denial is strong, and people are still ignoring the context.
Doorknocker we do not ignore the context. The context of Jill's decision regarding the picnic not happening doesn't make sense because we were shown Jill's personality otherwise.
Basically, the story regarding Jill's personality and the game mechanics collide. The game mechanics show us what is happening and contradict the personality of Jill as we have come to know her up to EP6.
Either the game mechanics were awkwardly implemented by DPC or it was done deliberately because of the story. Since DPC is very meticulous, I rather assume so that he wants to create a similar drama for Jill as he did for Zoey. A missed opportunity in life due to a bad decision.
What I wrote above refers purely to the chance of a romantic relationship with Jill. If the player just wants Jill as a friend, I agree with you.
But the Jill example clearly shows us so that DPC wants the player to choose a Branch and to do so as early as possible, without knowing which Branchs we can choose in EP8. The more inconsistent the player is in pursuing an LI (Branch) from EP1, the greater the consequences for the MC.