We have often gotten "splashed" a bit if we were in the front row, on the initial drop down into the ship scene. Very rarely, one of the cannonball water explosions would splash one of us sitting on the outer end row.
However, when we were there at New Year's, the CMs were overloading the boats with too many people. They were cramming 5 into rows where 4 normally sit, and 4 into rows where 3 normally sit. In addition, a lot of people are flat out a lot heavier when they used to be. And we had water washing in over the sides and the boats scraping bottom.
Also on a couple of rides, too many heavy guys were on one side of the boat, and it leaned to the right or left a lot. That side got water in.
Basically, the CMs need to take more care with loading than they do. I don't think they care though, as long as it's not breaking down the ride.