While admirable, just because your coaching methodology doesn't focus on correlating an individual's weight to performance, it doesn't mean that another coach doing exactly that is wrong or misguided. I do not condone the alleged name calling or belittling of athletes in his charge, but at some level, they agreed to a contract with Metcalf to be coached by him in accordance with his methodologies. If anyone has read Running With the Buffaloes (which i'm sure 99.9% of posters on here have), there is an excerpt in there in which Wetmore discusses a runner's weight with them in comparison to Goucher, who at the time was the #1 NCAA DI XC runner. This exchange highlighted the fact that the particular runner's weight/body mass was not near Goucher's and thus indicated that in order to reach a higher level of performance, a leaner build similar to Goucher's was necessary. From my limited knowledge of the inner machinations of the CU Boulder program at that particular time, I don't think there were any red flags raised by the team and/or the administration from this exchange. It was just simply understood that as his job as their coach, Wetmore was to get his athletes to their peak performance through any and all means which, in this particular instance, was losing weight.
The correlation of a runner's weight to performance has been proven time and time again (with the exception of outliers such as Paul McMullen and Solinsky), so it doesn't strike me as a vile offense to do his job and get his runners down to an appropriate racing weight. However, if this was done in a method that was deliberately starving individuals and thus not allowing them to get the proper nutrients for recovery, etc, (which by the few articles i've read on this subject seems to be the case; but I don't make judgements based on comments from pissed off college kids) that in and of itself is in direct violation with his job as a coach to get the best return on his investment. But, as is common place these days, I would wager that most of the individuals raising concerns about his methods on getting kids to the appropriate weight are the ones that would scarf down shitty foods at inappropriate times and are thus complaining that they couldn't have cookies when they wanted to. As a DI athlete, it is essentially your JOB to be in peak shape. I see nothing wrong with a dude that cares about the success of his program and doing what he feels is necessary to get his athletes to perform up to the level that they are expected to.
With that said, I think this whole thing comes down to the fact that most college athletes these days are soft. They expect to be spoon fed everything and if they think they are being treated unfairly, immediately go scorched earth and try and have someone fired (I can speak on this from direct experience). Hell, I would've loved if my college coach was passionate enough to make sure I was eating the right things, not going out and partying on weekends, and letting me know if I was being a shitbag by not performing up to par, as long as it was done in a constructive-ish way. But, if the stories these athletes are pushing out are true (by and large) then perhaps he was in the wrong and was not doing the things a good coach should be doing.