The problem is that people just drop cats in the water to give them baths... and to add insult to them, the humans wash the fur that they have been grooming for hours and hours, I wouldn't want to be just dropped in the water when I dont feel like it and be scrubbed over when I'm already clean.
What I do when my cats really need the bath is to put them in the tub with a inch of water then let it fill up with warm water....
btw, cats can swim and yes cats like water