No doubt many of these factors under discussion will be in the official report when it is published.
It may be that the report has been finalised but "interested parties" have been given a chance to read same and comment on any conclusions. I believe there is some kind of statutory requirement to do so under the UK accident investigation regs so perhaps there are some points of issue which are still being thrashed out.
Like many I am interested in seeing the full report to see what we can learn from this accident.