While confusion stayed the default for the viewers, the announcers didn't get too stuck up on it. They quickly explained that Eldrian had infiltrated the magic barriers and destroyed them from within, and then tried to find something exciting about the match to talk about.
Of course, there wasn't much to talk about outside of Eldrian's feat of bringing the barriers down. The battle after that had been so quick it had been a massive letdown.
It was not even close to what the tournament organizers had expected. They had hoped for an extremely flashy battle. One where thousands of spells were crashed against the barriers until they finally gave.
Instead, Eldrian had 'hacked' the barriers and brought them down without any flashiness.
Naturally, the announcers wanted to somehow recover the hype that they had made for the match. They tried to distract the viewers by talking about the next upcoming match—in three hours. But that didn't work.