Doubt that would have saved them. They haven't been in YouTubes good books for quite some time now and by Henry's own admission they would try pushing the boundaries.
Jeanie is hot, cute and has a good personality but the whole bleating by her and Henry when things happen is plainly childish. Maybe she puts too much trust in Henry, or maybe she knows what she's doing but it's like those people who whine about getting their drivers license taken away after drinking and driving and trying to justify that the system is wrong.
Ultimately they had NSFW content [in thumbnails] and in the videos and clearly they know as the whole thumbnail of big breasts or suggestive content is clear as day. Overall none of this is YouTube's fault, I frequently told my friends who do watch it that I'm surprised they didn't get banned earlier.
Yes it's sad that Jeanie's channel is toast as well, but she should be blaming Henry if anything for it. With her looks and personality she could have created a massive empire for herself where she wouldn't even need to abandon her morals but instead went with Henry's idea of continuing down depravity and pushing the boundaries.