Well said. If someone doesn't want to fly in a small plane then that is there decision but the safety record for Alaskan float planes and helicopters, and aircraft in general, is far better than driving.
I doubt that few people stopped flying into Midway, Charlotte, Dallas, JFK, La Guardia, (not including 9/11/01) Charlotte NC., Lexington KY. and Miami because of fatal crashes that occurred there. There have been other crashes, worldwide, but these are U.S. crashes within the last six years. This was the first crash of an Alaskan tour plane in 21 years.
I wouldn't hesitate to book a flightseeing trip with an operator that has a clean maintenance record and a pilot with a high number of flight hours.