I think you will be fine. Tronimal (the host of the jam) already played your game (and all the other games) on Twitch and seemed to have enjoyed it. So you don't have to be worried about getting removed. I think the NSFW rule was more about naughty stuff and not about exploring darker themes.
You can watch the video here: https://www.twitch.tv/videos/1313160070. Tronimal starts playing your game at around 12:30.