I don't think it's in any way wasted even if User:TazminDaytime's information is correct — and clearly, since several of the things she'd already produced even when she made that Tweet are known for sure to have had licensing from the BBC, we're missing something. Whether it happened with The Zygon Isolation or has yet to happen, what to do about mentions of Tardis in-universe was a useful conversation.
Also, we should remember that this thread is not an inclusion debate of any kind, and not really qualified to have us come to any consensus on what should or shouldn't be covered on the Wiki. Tazmin's quotes are interesting to be sure, but not hugely interesting to this thread, which is how to organise the stuff we do cover. Nor, as I said, are they sort of clear-cut thing which makes further discussion pointless and the conclusion foregone.