I will watch the demo and form my own opinion. This could be just a mistake and not even worth reporting in the first place.
[Update] I don't see anything worth punishing, mistakes happen and I've done it myself. He was getting attacked by another blue and was worried about dying, so he didn't know FF was off. Tho someone did tell him to turn it on but he died shortly after. Tho the people in the report saying they were going to report for "Griefing LR" clearly do not know the rules here. It would be LR Denial, but he still preformed the LR since it was played and ended. This can be denied. Nothing in the demo showed any bannable offenses.