I think it's important to focus on the details. For example, the theory with a fallen tree on the tent also has some cracks, because Zolotaryov, with a camera in his right hand and a compass in his left, certainly did not go to sleep and was not in the tent at the time of the incident.
I suspect the book you refer to is "1079" by teddy and Igor. The book has its merits and I don't think it should be dismissed. It is a new way to look at some of the events and more precisely, the documents and other activities going on in parallel at the time of the incident.
It explains some of the inconsistency in the reports and gives a motive why it was covered up. I recommend the book because it gives us other avenues to consider.
I don't think Zolotaryov was holding his camera in one hand and a camera in another. I believe he had a compass on one wrist , not his hand. I'm not even sure if a camera was found but it's reported that the camera , or camera case was around his neck or the camera case strap was wrapped around his hand.
It was reported that he had a pen in one hand and a notebook in the other. I e never thought of this before , but due to his injuries, he wouldn't be holding anything, if it was a blast wave , a fall into a ravine, a tree falling on to him , nothing would be in his hands .
If he was actually holding anything in his hands , it would suggest that he was actually entombed by a snow collapse at that moment in time clutching what ever he was holding.
But this raises another question. If he was holding a note pad that was reported, by the investigator but was frustrated that there was nothing written in this note pad , this part of the story makes no sense either . The body's were decaying, we can see from the photos from the ravine four that they were under water, I would suspect that any note pad found would be a soggy mess after 3 months submerged. ( Something I've never thought about before or read ) .
If Zolotaryov was holding anything in his hands , he died where he was found and sustained his injuries there and then , either that or the stories of him holding things in his hands are made up.?
Just a thought.