"disclosing the final report raised “the prospect of further negative publicity it could generate for HPE” "
This is very clever. This statement is an invitation to speculate about what is in the report that would be so unfavorable to HPE, and when people speculate without evidence, the speculation is usually even worse than the truth.
Could this be a bit of jiu jitsu? Everyone will think the HPE is hiding something truly awful, so they'll push to release the report in order to reduce the impact of that?