…No, no, not because there was any confusion (there wasn’t.) But because, or so it seems, he just wanted to express his feelings. (Hey, Duff’s a modern kinda guy, you know what we’re saying?)

Whatever the reason, this is exactly the kind of info new writers, trying to get insight into how the series process works, need to know, which makes us very glad to be able to present:
The Closer Finale Postmortem: Creator James Duff Talks Brenda’s Final Confession – by Adam Bryant