There are good reasons why Michael Freund is still up and running:
Michael Freund's image is that of a clean-cut "good citizen" and is the opposite of the greasy sleaziness that Tropper exuded from every pore. Freund comes across like a "saint with a halo" compared to Tropper's grim Mafioso demeanors.
Freund is connected to the right people in the Israeli establishment and government and through Shavei Israel's efforts they can showcase that Israel does not discriminate against any racial group and that Zionism is most definitely NOT racism to a world that forgets that Israel has already taken in millions of multicultured (Halachic) Jews from every corner of the globe and does not really need to prove its bona fides.
And if as "Jersey Girl" says, Freund is funded by the Christian Evangelicals (and they have unlimited hundreds of millions at their disposal to further all their aims), then that is another reason that the likes of the Netanyahu and the Likud want to impress them and not interfere with the financial support for Freund's Shavei Israel because the Likud counts on the political support and muscle of the Evangelicals in the United States against the liberal anti-Israel establishment.
But Freund sincerely believes that he is doing "the Lord's work" -- you can see it in his face on any of the YouTube videos with him talking on this topic -- his earnestness and sincerity are obvious, see this good example:
http://www.youtube.com/watch?v=wQzhNlL0lWE (YouTube video 5 minutes) and the way he speaks with absolute certainty, no one stands up to such a tone of voice and audacity! so that few realize the anti-Halachic controversial nature of his organization's global missionizing and proselytization of gentiles with borderline Jewish identity to haul them over to Israel and hold them up as PR prizes for the Zionist state and the "atchalta de'geula" that he no doubt believes in with the clear "messianist-appeal" pull of modern day Zionism at work.
By the way, listen to Michael Freund attack a former Likud Minister Sheetreet who wants to introduce a 5 year waiting period and Michael Freund attacks, worth listening to:
http://www.youtube.com/watch?v=cZnZDaSwluw (5 minutes)