I missed this the first time round too. Can't think how. It's great, and I agree with you. Have also read various things that make me see that what you thought would happen in the comic is in fact happening.

One of these is Scot Allie in his latest Q&A saying that Harmony's role in the story isn't planned but will change with the needs of the story, ie. if Joss sees further use for her down the line, he'll use her but her storyline isn't set in stone. In other words, more tactical thinking. Yep.