Ok, do you KNOW that RCI has not contacted people who had exchanged into Caravanseri? I'm not saying that they have or they haven't, but you're just assuming that they haven't?
There also could be at least some Caravanseri t/s owners who show up, not knowing what happened either. The only notice I have heard about Alegria giving to t/s owners is by email and we all know how often email can go astray. Otherwise, I think the only way someone would know is if they read about it online and many people aren't internet savvy. Plus, some people could have gotten the email and deleted it as spam..