Oh it's not about that, but about what has already been told. When Cloud goes "do I get a say?" to her telling him to not fall in love with him cause it's an illusion, she literally references the Highwind scene... meaning that she knows that this is HIS say, and that she knows it. She doesn't want to get attached to him more than she does already. This is the thing that makes me really curious, how they're going to go around this for the GS date...
So having Aerith come back on this would feel very weird, in the sense that the story goes on. In her GS date, Aerith says that she wants to meet the real Cloud, hinting at his mental problems. But that, she's already hinted at in her resolution; the devs have said that they wanted to create an event that would remind people of the GS dates system. I am much certain that we will have the GS date system still in place, because you can't have the one character who has already said all that she needed to in her resolution to do it again just because people need to get attached to Aerith.
Actually, I don't think people need to get "more" attached to Aerith, I disagree with this. Nearly everyone (hell, even I!! And people here can attest that I hated her a LOT in the OG) loves her. Those who don't like her now will never like her anyway. Most people are speculating to know if they can save her this time around. In the same way, I don't feel that people need to become more attached to Tifa either. Her haters will never change their opinions about her, and people who love her, truly adore her already.
On the other side, you have the date system in the GS to which a lot of people are looking forward to, because it's fun! Before Remake was released, I used to think they would maybe make Aerith's date non-optional, but now it feels too redundant for them to make it non-optional, especially when the cloti side needs to advance a bit - there might have been a hug, but it was not romantic, even if it had romantic subtext. And as I said before, there's also the fact that Cloud and Tifa were supposed to have a date but never did. It feels incomplete. And in the OG, it was Tifa who was interrupted by the fireworks