These are pro players that make tons of money from playing the game. Red team should have easily killed baron, plus vicious had smite which makes getting the kill on baron just a matter of pressing a button and yet they fucked up and Dyrus stole it allowing blue team to steamroll.
Basically a newbie mistake from one guy and a good play by the other to turn the tide of the game. Pretty common in newbie games, but not something that happens often with the pros.
