I would say yes, but with pretty significant caveats.
1. Without additional evidence, there would need to be an objective statistical threshold so that politics wouldn't enter the discussion (say plus-minus 4-sigma for the entire event with respect to contestants average scores)
2. A 3-month waiting period (or so) to see if scores start creeping up near the outlier tournament
3. A record would have needed to be set or someone would need to file a protest
We have to trust the systems in place, but it is potentially good policy to investigate outliers if warranted and necessary. It's not a perfect comparison, but medal winners in the Olympics are subjected to some additional drug testing scrutiny because they are the outliers.
The key to this additional scrutiny would be that no one is being accusing of foul play. There are so many things that can cause this type of clustering and I would argue that the majority of them don't involve foul play on anyone's part. One benefit of such scrutiny might be that we are able to identify site, weather, and boat conditions that perhaps result in higher or lower scores and allow us to provide skiers with more consistent conditions and a more level playing field during competitions.