I was on Rainier during this taking a Denali Prep class with AAI. Carrie Parker, one of the AAI guides who responded to this and was mentioned in the article, was one of my guides on the trip.
As a commentary on the situation - death happens in the mountains. The guides responded quick and professionally, but were detached. Even the clients were detached (myself included) when we found out. We never got near the recovery efforts, so it might have been different had we witnessed them.
The conditions on Rainier were very crappy when I was there last week. This day happened to be beautiful weather, but the overall agreement of the guides was that the avalance / crevasse risk was too high.