She was playing "Loooooooy" from I Love Lucy not Lucille Ball the person. She did well with that character but the real person was not wacky and could actually be quite mean. And Desi wasn't a faithful and devoted husband like Ricky, the character he played.
I don't like Nicole's casting but I don't think Debra fits the bill either. (Not that I'm sure she can't be mean but I do think there was an edgy quality to the real Lucille Ball that I don't know that she can capture.)
From what I've read on Twitter, it does sound like there was inappropriate and borderline illegal stuff happening. I doubt it'd ever be prosecuted but it seems that some encounters began with consensual kink but he pushed beyond boundaries of what the women were comfortable with and went into dangerous territory like choke play.
I think that's what's getting lost in all the "Armie has some weird kinks/don't kink shame" talk. I remember there was an interview he did that made me raise my eye brows. He mentioned he used to like to pull a girl's hair during sex but he grew out of that and doesn't do it with his wife because he respects her too much. Whether he engages in vanilla or kinky sex, he should be respecting his partner.
So yeah, he's kinky but it sounds like he's a bad kinkster.
Oops, forgot to include this link. A recent girlfriend talked about what being his girlfriend was like. Grain of salt and all but so much about this aligns with things even he has said.