Just watched this one. Strange ending. I see it is currently listed as "NWS" in boxrec.
I suppose we'll have to wait for the info from the commission, but in case anyone is interested, here is a video of the end and announcement. (sorry about the bad sound, that's how it was broadcast).
The ref was really annoyed by Gaona's roughhousing and finally waved it off. But it was oddly announced as a TKO. Anyway, I hope the video helps clear things up.
There were also 3 undercard fights aired.