I don’t know in that instance how much of a penetration into the crust much less the outer or inner mantle occurred,, but it would sure seem like stuff would come popping up and out of that general vicinity.
The Yucatan impact was 112 miles wide and 3000 ft. deep but, that event happened 330,000 yrs before the extinction of the Dinos. It’s likely a later impact effected their extinction according to National Geographic. I’m still going with the multiple cause theory.