No. There are tons of projects that are YouTube Add Ons, we are simply an external reward plugin that offers fan tokens, if anything this will benefit YouTube as more watch time = more ads.
We see no issue here nor does our legal team or content creators. Youtube can't really do anything, it's a third party plugin like Honey app, you can't stop it, not that I think they will have an issue with it, as people will watch more ads due to more watch time. Creators don't even need to promote it.