Oh please!
Even in the few countries where this - technically - may be prosecuted, do you really think the Dev would be allowed to keep making the game and all his crowdsourcing up? The first thing the cops would do would be to take them down and tear them apart forensically.
This is just another case of a dev caving to pressure and not willing to risk his Patreon account. In fact, I can almost guarantee you that the whole "don't talk about it" thing was a threat by Patreon's T&S department, because they hit me up with similar lame shit for a project I had done in the past. They told me to rename my game, rename my company and rename the website and they - might- just let me keep my account up. Hypocritical Nazis that Patreon are.
EDIT: By the way, this should not be listed in restricted.