No, she had control in canon too. Luminous!Bella is only a touch more self-possessed. My explanation - maybe I haven't played it up enough? - is that if you know something about what to expect, you will do a better job of handling it. This is borne out by Carlisle being immune to wanting to nom humans, and having known vampires existed before he was bitten. The others have more trouble, and the one who has the most trouble is Jasper - who also was turned the most unexpectedly and traumatically, while the others at least expected to die of injury/sickness or had amnesia.
Alice and Edward are the most significant Cullens, and have witchy powers. The antagonists include a large proportion of witches. Does this get Bella a witchcraft pass? Particularly since her power is one that only works in the context of other powers - it would simply not do anything in the absence of other witches.
I'll do a little testing and see if I can make it take file includes there. Pasting would leave the problem that the feed would require separate correction if I fix a typo or something.
Edit: I just tried a test of this and it didn't work. If anyone knows how to make RSS feeds accept file includes, please let me know (it'd be useful for Elcenia, too! HTHT already sends the new comic page through the feed, but that's just an image.)
As an interim solution, try http://luminous.elcenia.com/story/luminosity##.html where ## is the chapter number. This is where I upload the files with the text, and then they go wherever else they need to be via file include.
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Nice catch.