I guess Kyurem-B's suspect testing wasn't a bad thing, however I clearly do not understand intentions in background. The OU's metagame annoys me again, with or without Kyu-B. And he is not even as good as hoped. I expected a monstrous brokenmon, in the end, it's just one more (Genesect *cough*).
Unban or ban, doesn't matter to me, because this suspect is not the good answer for the good question ; how to make an enjoyable metagame.
In fact, I don't care about Kyurem's unban.