Trump spend hundreds of thousands of dollars to cover up a one night stand with a porn star. Which he then tried to write off as falsified business expenses and resulted in 34 felony convictions. Having sex once with a porn star while your latest wife and child are at home is a bad look.
Having a sexual relationship with a woman who is a convicted child molester and has recruited as many as a THOUSAND teen age school girls into sexual servitude to Jeffrey Epstein is on a whole other level. Especially if Trump is now going to magically wipe away her criminal conviction and let her out of federal prison where she would otherwise spend most of the rest of her life. And if part of Trump's reason in giving Maxwell a pardon is his own personal and/or physical relationship with this predator, may be important.
As far as timing, ALL the criminal activity that Maxwell was involved in happened before about 2004 or so as she left Epstein when he was first arrested. Probably for good reason since she was so involved in the sexual abuse. I have not heard whether Epstein continued his assaults after Maxwell left, or who was his recruiter if he did.
Epstein and Trump both treated the 'models' - the girls and women they abused- as 'things', not people. The question of what else they shared, or who, seems relevant to understanding this sordid affair.
And Trump's involvement seems to be the first crack, the first thing he has not just been able to wish away with some of the hardcore MAGA base. If he looses enough support, maybe a few of the Republicans in congress will start to find some backbone. I can't see any other way to stop him.