"Come to Taiwan; you may or may not watch someone plummet to their death while here" doesn't appeal to me, personally anyway. Anyway that guy that did it with safety equipment a few years back made the rounds in the news too, so not sure this was necessary in that regard.
Injury and death happens in rock climbing even when tethered. Not often but it does happen, that's the nature of the sport and it's the same as BMX, skateboarding, motocross, any kind of racing.
It's also the same as just living - go look up Taiwan traffic deaths. There's so much more dangerous things happening here and wherever you live, it just seems silly to criticize someone for doing an extreme sport publicly.
There's like one injury per NFL game ffs...
It's an extreme sport and a thrilling thing to watch. The danger is exciting and makes his accomplishment all the more stunning. I think it's really cool that there are humans willing to push the limits of the human experience like this.