I disagree. The worst mountaineering disaster in the US ocurred below the ID. Lots of opportunity for rock fall (Jim Wickwire lost a partner this way), serac fall, (over a dozen died at one time this way), crevasses, avalanches off the Cleaver have taken lives, weather, as it is all over the mountain, is an objective hazard.
Fair enough. Good points.
Concensus seems to be: consider doing it with a high camp, consider adding a third experienced party member, make some training climbs with maybe some practice sessions, and be smart enough to bail if necessary.