Back when phones still had removable batteries, I had them rained on, spilled on, and even dropped one in the toilet. I then submerged that one in a bowl of rubbing alcohol for several minutes. In all those instances, I popped the battery out and let it dry. I've never had a phone destroyed by water. Worst case was buy a new battery! Back then non-waterproof phones without removable batteries also existed. I'm sure they succumbed to water much more easily.

I'd take a removeable battery over almost every modern feature on phones today.