The plumber installed a water heater under the sink and instead of having an electrician put an outlet where it was needed cut a hole in the sink lip and ran his cord through it. There is no grommet or other protection where the cord goes through the metal.
...and it's only because of the intellect of the electrician (and maybe the NEC)that the GFCI is there to begin with (although locating a receptacle of any kind directly behind a sink doesn't seem like a great idea).
Unfortunately, it seems that a lot of church installations are done by well meaning but seriously misguided people - usually on a volunteer basis.
If I had to guess, Texas, I'd guess that this kitchen was re-modeled. I suspect that the original sink was a single basin (to one side of the receptacle), and that the cord goes to a garbage disposall under the sink. (How the disposall is switched is anyone's guess!)