It’s always devastating when people lose their lives in climbing accidents, the feeling that it could be me next time is ever present.
Avalanche forecast looks fine for this time of year, I’ve been out in worse, and wouldn’t consider isolated patches of considerable a significant danger to an experienced party – poorly bonded windslab is a fact of life for winter in Scotland and appears in the avalanche forecasts 99 times out of a 100 I’d guess.
It looks like, and is normal in Scottish winter accidents, that the avalanche didn’t harm them in and of itself (like an alpine avalanche might bury you) it’s the falling down the rocky gully/crag that does the damage.
Having got off lightly from being knocked off low on number 3 gully buttress a few years ago by an avalanche/cornice collapse I know how easy it is to happen, we were lucky none of us were roped together and this limited the distance we fell (one of the party of 4 wasn’t even touched) and only one of us (me) went over anything rocky.