Path generators don't make ugly levels. People do.
The generated stuff can be scripted to be BETTER and FASTER than doing it by hand any day. Just because you have some basic path generator that makes "generated" looking paths, does not mean that is all that can be scripted with it. I'm working on a set of scripts that can make stuff that people won't even be able to tell were generated.. As a matter of fact, you could post a hand done path, and a generated path of mine and you wouldn't be able to tell what was generated and what wasn't.
It's ridiculous, I could post two generated levels and people would vote which one they thought was hand made, even though they were both generated. YOU CANNOT TELL.