They could have waited until June to do this hike.
If they were adequately trained and equipped, and avalanche danger was low, there would be nothing wrong with doing this hike in February. I’ve done (non-technical) climbs in the White Mountains and the Alps in every month of the year, in conditions down to well below zero.
On the other hand, I was prepared, with clothing, gear, and training. I’ve also participated in searches for lost “hikers” in June on Mt. Washington. Conditions there at altitude can change quickly, even in summer. “Hikers” - and I put that term in quotes because in general they are more like “walkers who equate climbing a mountain known for the most extreme weather changes on earth with a walk in their local, perfectly level county park” - will often decide to climb to the summit wearing jeans or shorts, t-shirts, windbreakers, and sneakers, because, after all, they can see the top and it’s sunny up there!
One recent example: In September 2006, four twenty-something “bros” with no climbing experience whatsoever decided, in middle of the afternoon, that they were going to climb to the summit. It would not be humanly possible for them to make it up and back down before dark, and they were advised of that at the base of the mountain. It was 70 degrees and sunny at Pinkham Notch, so they decided that shorts and t-shirts were the uniform of the day. They all survived, barely, but one has irreparable brain damage.
There is a “Hiker Responsibility Code” and everyone who sets out into the wilderness ought to adhere to it:
“You are responsible for yourself, so be prepared:
With knowledge and gear.
Become self reliant by learning about the terrain, conditions, local weather and your equipment before you start.
To leave your plans. Tell someone where you are going, the trails you are hiking, when you will return and your emergency plans.
To stay together. When you start as a group, hike as a group, end as a group. Pace your hike to the slowest person.
To turn back. Weather changes quickly in the mountains. Fatigue and unexpected conditions can also affect your hike. Know your limitations and when to postpone your hike. The mountains will be there another day.
For emergencies. Even if you are headed out for just an hour, an injury, severe weather or a wrong turn could become life threatening. Dont assume you will be rescued; know how to rescue yourself.
To share the hiker code with others.”
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