I have had five Ti frames (have one now) the lightest of these was triple butted, it cracked on the butting transitions underneath the top tube just behind the head tube, my mate a top Ti welder made an exceptional job of welding it, I built it up as a super light fixie and rode it for a year, I sold it and I think it is now back on gears and still going strong.
Er... the viewer is observing and verifying. How would they cheat that demonstration and what interest would Pinkbike have in cheating? Next you'll be asking for it to be peer-reviewed and the findings published in Engineering Today!
One model of carbon frame is stronger than one model of ally frame. It's difficult to extrapolate those results with any certainty.
What is interesting is the different mode of failure of each: the aluminium buckles, the carbon snaps.