In the al hanisim it makes sense to say that the mighty fell to the hands of the week and the many into the hands of the few That's miraculous. But to say the wicked felt in the hands of the righteous and the impure into the hands of the pure that stands to reason? Many Jews at that time were not observant so when it says the wicked and the impure that is referring to the Yidden who had joined the side of the Greeks. Even though the Maccabees were few in number in terms of spiritual commitment they were still victorious