It wouldn’t be my pick for a venue… but I imagine it would be difficult to find somewhere that can accommodate this many people. The hotel and the grounds look amazingly beautiful.
The ocean does seem to be hit and miss with the seaweed from the reviews I just read and the pool being cold is mentioned quite a bit.
I am thinking the complaints are because the hotel does target the luxury market and those people tend to be a bit more elitist and finicky then the average traveler.
But I do understand your concern.