Eh...
There are many reasons to hate on siccash, or so I've heard.
But this is not one of them.
Other sponsors need to TAKE NOTES from these guys on how to handle affiliate terminations. Most of the larger guys I've seen just drop an account and not even let you know, much less pay.
What they did is stand up in my book. They no longer want your traffic, so they let you know. You're still being paid, and even have a fair time to remove your current links.
What more do you want?
-Phil