"If bad rumors start going around about Makoto..."
??? Do you have rocks in your head? Bad rumors are exactly what led to him becoming like that in the first place.
So Shizuka does have self-awareness... but every day she chose not to stand up for his innocence is a day she betrayed him.
"I was so shy back then so I didn't have friends."
So Makoto wasn't even a friend then? She's also a betrayer for letting the rumors of him sexually assaulting her go unchecked. This was also the most damaging out of all the rumors plaguing him, even worse than what Shizuka did or what the prankster bitches who followed her did. And here she was busy bathing in the attention and adoration of her newfound nerdy boy toys. Miyu is the worst out of all who hurt him. And this meeting is trying to tell me that Nanako and Kisaragi were somehow worse? Please.
A pity party of losers. They don't deserve redemption without at least trying to undo whatever damage they let happen in the first place. Only by trying to rehabilitate his tattered reputation can they even try to start. Anything else is a non-starter, including direct apologies that now have zero credibility for him.
What's even more unbelievable than all of them conveniently chasing after him now is Haruka getting Shizuka and Miyu who're supposed to be in love with him, onboard to support Anri who they all judge as a delinquent. Like, what?? I know I enjoy seeing these ignorant bitches suffer, but this is far too contrived even for me. Why would Shizuka and Miyu support Anri who isn't even their friend, let alone someone they think is an awful person?
A more realistic outcome is that despite this meeting these three then end up betraying each other, trying to get a head start on Makoto, by following their own self-interests which is what they've always done anyway all these years. I don't actually believe they're capable of supporting Pomeko, that's insane.