The Umpire is that
Martin Bodenham fellow (unless it's a substitute Umpire, which you could conceive it being with a decision like that), because the other official in that game was Ian Gould, and his very distinctive finger-raising style was certainly not present in the dismissal in question.
I guess if it was a UCCE game that'd to some extent explain the lack of fuss; the papers never report those games, nor do CricInfo, and the crowds - if there are any - (especially at international grounds) are almost exclusively fellow students some of whom don't know the first thing about the game and are just going on a trip with their mates who are playing. No-one's going to be filming in any official capacity, this lad who took those two vids will have been totally unexpected.
It'd also be the perfect opportunity to make a few quid on some sort of mutual fix, as virtually no-one cares about these games (especially given that Bradford\Leeds don't even have First-Class status so no-one's records are even at stake), and as everyone knows, students always have an eye or three on some money-making. The Umpire is a nobody so he's got little to lose even if he does get found-out. The Surrey players are highly unlikely to take any interest in it.
Matthew Engel warned in Wisden (2004 I think) that I$C$C have a deal with Betfair to trace any unusual patterns; the ECB don't, and it's well-known that they don't.
This post, remember, is from someone who despises conspiracy-theorism. I'm not saying this because I'm being sensationalist, I'm saying it because I honestly think there's a chance.
CW should contact the ECB, really, to see if they're aware of any of this.