I don't think this was the right way of name and shaming on him for whatever reason.
Lloyd Evans doesn't have a complaint box. Ask Louise Goode. She was his co-host and he rode her ass all weekend because she expressed a positive opinion of Jonathan Sanders. It was only until Louise got down on her knees and offered an unequivocal apology that he forgave her for expressing her opinion.
What he does have was an established method of naming, shaming and bullying anyone who expressed a contrary opinion or even worse, was directly critical of him. He had an army of sycophants who would have mercilessly trolled and bullied her until she either disappeared or recanted. His livestream was meant as a bat signal that it was full-on war against Kim.
I believe Kim knew what he would do. I believe she knew how brutal he could be, and her bringing it up in private as you seem to be suggesting would have effectively only tipped him off that he had a dissenter and would have moved quickly to publicly sack her and highly imply it was for an issue of trust or dishonesty. And then he would have set his dogs loose upon her while covering his tracks in Thailand and elsewhere.
She was quite literally in a no-win situation. She could have bent the knee and let this information slide, allowing him to continue to milk the community for financial support and continue to abuse his wife. She could have just resigned and disappeared. She could have slipped the info to someone which he would deny considering the source was not firsthand and set up a campaign of abuse towards the leaker. Or she could have done what she did.
It took nothing short of unprecedented bravery and a strong sense of right and wrong to do what she did. Isn't that what being a former Jehovah's Witness is about? We call out these abuses on WT and document them. How should that be any different upon Lloyd and the damage he was causing by leading such a double life especially considering the fact that he was an exJW CSA advocate participating and feeding donation money into a system of abuse and sex trafficking. Should she have waited until it got worse (which it was quickly becoming)?
She put her own name, reputation and mental health on the line to allow people to make an informed decision on whether to support Lloyd Evans. Over half have and have agreed with Kim. If anything, doing it in the manner in the way she did exposed him even more for his bully tactics and legal threats.
I'm glad she did it in that way. She held a huge mirror up to Lloyd Evans and if you don't like what you see, take it up with the man whose reflection you see staring back at you.