Because it's pretty clear that Skiffy Channel employees are here trying to raise it's profile by writing smarmy reviews.
This movie has the same plot as nearly every other Skiffy Channel movie. (This was on the Skiffy Channel, right?) A mutated/alien/strange creature rendered by basement-nerd CGI gets loose in a rural community, starts picking off the locals one by one.
Somewhere, I hear Skiffy channel execs having a staff meeting. "Okay, we've done snakes to death. People are bored with snakes. What else do we got?"
"How about giant eels, sir?"
"Aren't those just like snakes?"
"Uh, no, they're fish."
"Well, don't they only live in the water?"
"We'll say they can go on dry land, too. Then have them pick off a collection of bad southern stereotypes, since it's the last accepted bigotry in America."
Bottom line, for all you aspiring writers. An interesting monster might be the hook, but you have to care about the characters. We get a lot of characters, nearly all of whom become eel chow, and you don't feel a bit of empathy for any of them.
Avoid this movie. I wish I had... watching bad movies so you don't have to.