I think I'll reserve judgement on this one. I wouldn't assume the article presents all the facts and circumstances surrounding the incident. I think the coaches are wise enough to get the scoop, weigh the evidence and information, and make a reasonable decision as to any action that should be taken.
Someone said they saw Slauson break two mirrors. Was it dark or daylight? How did he (supposedly) break the mirrors? Did he smash them on purpose or where they rough housing around and ran into them? Were the owners present? Has Slauson been trouble at the University? Even if he broke two mirrors on purpose a fine might be reasonable punishment depending on circumstances.
Not making excuses for anyone, just saying to get the facts and make the punishment fit the crime, if there was one.