From my business days, I like the term that my lawyer told me about partnerships - "jointly and severally liable".
I think that the pilot was partially to blame for not filling the tanks to the brim, given the remote location. As a link in the chain, his judgement was incorrect.
However, all the other factors played a massive part and could have easily broken the chain of causation.
Yes, give Dom a serve of blame, but look at the other factors as well.
When you look at the other factors, do they reduce Dom's liability?
If certain events did or did not occur, would Dom have diverted?
So, lets put aside the blame - the report itself seems to be wanting of some credibility and doesn;t seem to focus on other factors.
Not very balanced at all.