In connection with the re-examination of the case in 2019, official scientific expert opinions were prepared, which try to describe the climatic conditions of the period February 1-2, 1959 for the snow slope of the tent and the surroundings of the cedar; also the estimation of visibility; and the probability of a possible avalanche.
In addition, in 2021, Swiss scientists who had never been to the site, for some reason also developed a theory about slab-avalanche with the help of snow simulation software made for a Disney cartoon (which they downloaded illegally from the Internet).
Based on these, only 10 millimeters of snow fell on the spot during the indicated period, and not 30 centimeters, which you consider necessary for the avalanche. However, unlike you, these expert opinions consider it possible to develop an avalanche even in such conditions. And the visibility was only 16 meters. (which means that by moving 30-50 meters away from the tent, they would have found their way back to it only by following their footprints)
It is important to take into account that there are no meteorological data from the area determined by measurement from the time of the incident, only from distances of 50-100 km. Although experts can draw nice graphs in the documentation, but the data that the graphs show are based on speculation and have a lot of uncertainty.
Regarding the avalanche, other, unofficial, but serious expert opinion are also submitted, from someone who has visited the site several times and examined the structure of the snow on the given slope. He rules out any kind of avalanche in this area!
I have not seen any data showing that documented avalanche cases have occurred on this slope in the last 60 years! What are we talking about?
Your comment about the difference in snow conditions shown by the pictures digging up the tent site and the picture of the found tent is very good! The origin of the pictures digging up the tent site (there are two such pictures) is completely uncertain. They do not appear on any inventoried film negatives! In these pictures, one of the hikers can be recognized by his clothing. But what proves that these pictures were taken on this tour? It is also possible that the pictures were really taken on this tour, and we can really see them digging up the last tent site, but this site is different from the site that shows the tent found - because the tent was moved by someone.