ALL such arguments are spurious. They are arguments against the possibility that the bacterial flagellum "just fell together one day by accident". But since nobody has ever proposed that that's how the flagellum came to be, the argument is completely null and void. Furthermore, if the flagellum demonstrably did come into being that way, it would constitute a counterexample to evolution, and throw the whole theory into question.
Read the above comments, that seem to question evolution on it's merits. There are questions in the theory that just can't be explained. It doesn't mean that evolution is bunk, it just means that there are alot of questions out there that do need answered.
We can say this. Any scientist will tell you that 'you can't create order from disorder'. It's never happened.