In this case, I see Tom's point in posting this information. Those are some pretty cool pictures regardless. As for the accompanying information, for someone who is new to boating and gathering information from a website, it seems prudent to include the "safe" runs. It's generally the adventure lines, i.e. gut the meat, that don't require additional information to find. For someone with more experience boating, or who is more comfortable reading their own water, then choose your own big line and have fun!
Several Grand Canyon listservs have been discussing this incident for several weeks, and I imagine that the discussion would have occurred whether the boats in question were commercial or not, as having 2 boats wrapped in Crystal is big news. Tom was just giving us a link to more information from that trip.
“May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view. May your mountains rise into and above the clouds.”-Ed Abbey