The flagger does have a point. This is definitely well beyond human proportions, even if ignore the fact that futanari aren't real. So, I can see how it would violate TOS...
But on the other hand, a lot of Usatarou's stuff is on here, with the same proportions. And it's all well-drawn, if tasteless.
Conclusion: i dunno, lol. I leave it up to the janitors.