I still say the argument is somewhat pointless. Yes, dropping a huge waterfall is a kind of a dumb idea and definitely dangerous, and no doubt someone will get hurt or killed sooner or later. But, let's face it, kayaking in general is kind of a dumb idea and somewhat dangerous. It's all a matter of degree. I say let people make their own decisions, just make sure they're informed about the risks.
And seriously, 186 ft? This is getting ridiculous. Someone really needs to cough up the details here. Rumor with no info is lame.