Short answers, pulled from the story.
The match occurred on the 1st of August 2004 at the Evolution Championship Series held by California State Polytechnic University Pomona. This event marked the first time these two players faced each other in a loser's finals setting.
Daigo Umehara successfully parried all 14 remaining hits of the attack within six frames of impact. He countered with a 12-hit combo that concluded the round using Ken's Super Art III move.
Mark Man Julio found the previously unnoticed recording while serving as Evo business developer and Tekken brand community advisor. He uploaded the new video to YouTube under his account MarkMan in April 2019.
Umehara utilized the Parry technique which requires moving toward the opponent within six frames of impact to block without losing health. The timing window equals 0.1 seconds at 60 frames per second allowing him to predict the start of the Super Art Move.
Justin Wong stated he believed the match may have helped save the fighting game community during a period when it was becoming less active. The moment became one of the most-watched competitive gaming moments of all time by 2016 with over 4 million views.