if you put this into cube explorer HTM, literally the first thing you will get is this solution, so I think this guy has cheated definitely
for people who want to copy and paste
Scramble: R' U' F R U2 R F2 D2 R' B2 R D2 B D' B' U2 F2 D2 R' B2 D' R' F' R' U' F
Solution: R' B' D2 R' U R U D F' R D2 R' U2 L' F2 U2 B2 U2 F2
either he had access or indirect access (like texting a friend or giving signals or something) to a computer to use cube explorer, or before the comp, since he's one of the organizers, he could've been trusted with the scrambles on his computer by the delegate and just copy and pasted it and went and put it into cube explorer before or on the morning of the competition