I suspect there will be a full report by the RAIB.
Despite the changes made to this crossing following a fatality in 2014, there has been another incident resulting in the death of a crossing user. Where the fault or culpability lies is not the prime motivation for an RAIB investigation.
Were all the previous RAIB recommendations implemented? Was the correct procedure being followed by crossing users? Was a clear understanding reached between user and signaller in this incident? Was that call even made?
And in answer to those and other questions - if not, why not?
All within the remit of the RAIB. Even if it turns out that the user in this incident was at fault, the railway has a role in protecting the public from themselves, and doing all it can to mitigate their actions. A full report will go some way to achieving that.