"e. Break-up fracture lines include quite a few that are along what I call “production breaks”, where with an explosion you would expect multiple more ‘ragged’ edges, and with fatigue you would fractures further away from “production breaks”. This suggests structural failure ..."
The damage we are seeing is entirely consistent with a small high explosive device. There is shattering and jagged damage in some areas, and very clean tensile skin failures distant from the blast.
Ample proof easily viewed by searching for such gov't tests on airframes. The breaks on this Airbus look the same.
A huge explosive device could shatter the entire airframe, but that is not what is suspected.