We need to wait for better information, and it's sad that there are those who'd seek to profit on even unreachable areas like Titanic and Everest. One space venture group talked about going to the moon to recover Apollo artifacts to sell them!
The immediate info I've heard is that Irvin and Mallory's remains were found in very different areas, in different glacial zones.
I'm pretty sure that Mallory was on an exposed face, far from any glacial valleys ... covered occasionally with snow, but never accumulation. He had been spotted before, but was in a unstable slope, and thought to be a more recent victim.
I'll wait for accurate information from geologists and mountaineers, and I'm sure Nat Geo will do an extensive study.
Without the spirit of exploration, we'd be like beavers, creating family communities, but not venturing far from food or water.