It looks to me like a dedicated search team went beyond their legal boundaries to change the river. Their job was to find Kimberly, NOT CHANGE THE RIVER WITHOUT PERMISSION. There are reasons that this sort of thing has to be approved by the right people, so those of differing views can be heard before the change.
Somebody should notify the news media, the Bureau of Reclamation, and the local land management agency and report the tampering. It's Quartzite without dynamite, it's illegal, and it should have been properly discussed first. As is mentioned above, there might be a big wave train leading right into the hazard now, which could increase risk. The fact is, we don't know until high water. It should have been studied for a year. Now a famous rapid on the most rafted river in the world is different because a local Search and Rescue team feels they have the right to change the river now.
For the record, I would probably have voted "yes" to a change of this rapid, but it should have been done following a public input period and an proper impact statement from DOW so it could be done right. Maybe the sieve could have been blasted or changed. It might have been better to keep the river's general current path.
And what about all the river guides camped at Frog Rock? What if they fall into the current when they're pissing at night? It's right next to the left bank now... it'll change those sweet little fishing holes along the rocks on the left. I probably won't be able to count on fresh trout next time I'm camping there.
If I'm not allowed to dump shopping carts full of rock into the Poudre to create a wave in town they aren't allowed to change the rapid without permission.