Couldn't they have coaxed the bears out with food then shot them with tranquilizer guns?
You don't want to "coax" a bear. Ever.
The tranquilizers might have been useful, but what if the bear learned that it's OK to go into cabins? All that would happen to it is it would get well fed, then wake up a few hundred yards away.
I'm just saying that that is iffy at best. It is a nice alternative, but would you be willing to take the chance?
If a burglar broke into your house, would you want him tranquilized and released? Or would you want him to learn not to do it again? Now dwell on that a minute, and imagine what it would take to teach a wild bear anything.