Yes, I claimed that it could potentially happen in the books because we've already established that it happened to her at least once in the story, and the author didn't rule it out as possibly reoccurring again when directly asked about it. It would fit the character as she has been written, and it would fit the lore and established rules of the story as well. So it's really not out of place to conjecture that it may happen to her again. He said when her dragons were born it was a magical event, but that doesn't really specify if her surviving was because of magic from the dragons, or she had some magic within her self she invoked because of the situation.
One could argue that the events with the Khals could be a pivotal moment for her as a character, perhaps she has some magic in her (blood of the Andaals, which the books have established as having some magic) that she is able to subconsciously use during moments of extreme need? Again, it would fit with her character, it would fit with the lore, and it would fit with the story, both already written and where it seems to be heading in the books. Especially since is statement of "probably not" was in freaking 1999. So who the hell knows how drastically his plans for Dany has changed in the almost 20 years since he made that statement (here's the interview that the quote is from
http://www.astralgia.com/sfzine/chat...ts/031899.html)