Just an FYI: scores shouldn't be regarded as 'accepted' until you see a prize in the prize column.
So, it's worth having some patience... and, when playing a tourney, worth trying your hardest right to the end (even if you think you're out of the placings) just in case you get a surprise elevation on the leaderboard when the final tallying takes place. That happened to me last year in a couple of Tour Pro tourneys, and was very welcome I can tell you!
My experience has been that WGT staff do exercise due diligence, and carry out checks on suspect winners. It would not surprise me to see the tier leaderboard in question change when final results are posted. This particular score attracted attention in other threads as well.