Why does anyone lie about anything?
If there was racial abuse loud enough for him to hear it in the dugout, someone else would've heard it. There's been plenty of threads on here in the past where people in the crowd have heard the odd Albion fan say something racist and it's usually posted on here within a couple of hours of the game finishing.
The benches behaviour towards us is relevant and isn't about mitigating any racism - it shows they behaved like abusive thugs, morally the type of people who would lie about something.
He hasn't said when he was abused, so we don't even know if it was from the stands during the game. It could be someone outside, it could be a single comment over the tunnel wall as they walk off. We don't know.
I just think the reaction should be,
"I hope he's mistaken and if not the culprit identified and banned" rather than "he's a liar".