@JenJen Artistic nudity being allowed on the platform got *immediately* abused to hell and high heaven so I can't really say I blame Twitch for going back on it. It definitely is rough being an NSFW artist online, and I fully sympathize with the constant struggle it is just to be visible.
Regarding the ToS update, best I can do is refer you to this ~10 minute video that explains the individual changes very well. The goalposts really haven't moved.