Not at all. But we've got a lot more work to do before we can reasonably infer intelligent causation. Furthermore, Glenn, I think you're missing the point of John Casti's use of this example. That's a fact. There's another unsolved problem, but one conspicuously lacking any observations to explain.
Protein folding is an empirical reality seeking a theory.
Abiogenesis, on the other hand, is a theory seeking an empirical reality.