Don’t think the investigation report asks or answer the basic three (or four) why’s? Starting with why was visual reference lost ( ending up in-adverted IMC)?
What would your answer and next question be?
My answer to the first question would be they did not turn around early enough like they did in the previous two attempts.
Next question, why did they not turn around early enough at the third attempt? Etc..
The report could have been more thorough in that sense to provide more recommendations to avoid a similar incident in the future.
Lots to learn from this for everyone