Here are some articles to read on the rhabdo situation. I specifically found non-technical articles, but ones with quotes from people who actually know what they're talking about.
Iowa still learning from rhabdo incident that hospitalized 13 players
Iowa staff misused exercise that led to rhabdo, experts say | Hawk Central
College - Overly Aggressive Workouts Put Athletes at Risk of Rhabdomyolysis
Here are a few things that show just how preventable this event was.
1) It was coming off a down period, where kids hadn't been lifting.
2) It was a type of workout that they had done before, but certainly not every year, and never at the start of a training period.
3) It is questionable, though not provable, that some of the kids may have been on supplements during the down period. And while that doesn't mean they were doing anything shady, it does mean that they could have been much more susceptible, or been taking supplements that were of low quality.
4) The workout itself was widely condemned by the Strength Coaches associations, with some qualified individuals equating it with ignorance of the science or negligence.
Here are some of my thoughts. 100 reps at high weight isn't going to show you who's "man enough" or "separate the men from the boys" any better than a cardio workout would. What it does do is create an environment where injury and overuse is very likely. High rep, high intensity workouts coming off a down period is simply idiotic. I see tons of athletes who do this type of crap when they start P90X and all that stuff. They come in with serious muscle strains, tendinitis/tendinopathy, and rotator cuff tears. If you want to send a message, use cardio, don't do a bazillion of the same exercise. That's really, really dumb from a strength training standpoint. Really dumb. If you are going to do a very intense program like this, you work up to it.
Rhabdomyolysis: Symptoms, Causes, and Treatments
Approximately 1 in 4 who suffer from rhabdo will develop long term liver damage. Even to the extent of compartment syndrome, which can lead to permanent nerve damage or even amputation.
CrossFit's Dirty Little Secret | Eric Robertson
This guy is going after CrossFit, but it holds true for over-the-top exercise programs like what happened at Iowa. I actually know this guy, and he's a smart dude.
I'm going to stop there, cause that's one super long post. I hope you get the drift.