Dave,
Good catch on that one. I had forgotten that. HOWEVER, I tried it on my own environment a couple of years ago then spent a couple of weeks trying to figure why things were not behaving as they should - only to find out our Network guys block ALL multicast. ALL multicast. Imagine what that does to our LANDesk experience.
No they cannot be forced off this position.
Yes, I am... unhappy about it, but I digress