Well, seeing as some of the people trying to debunk the footage have been exposed as frauds who are lying... what are the odds that there are honest people trying to do a debunk? So far, the only liars have been on one side of this story.
It's not just Ashton saying it's not a match. The match is achieved on ONE frame of the animation AFTER applying multiple effects.
Anyone suggesting the footage is a match has been duped. The alleged explosion animation has been used in films and video games, but it's never been altered. I would agree if the animation was a complete match for the duration. But it's not even close, it's a single frame and it needs to be manipulated for an approximate match on the single frame. So why doesn't the rest of the animation match? Come on, be honest and explain that.