Ironically the one who had Spence winning wide was Byrd, who's got the real bias here fetishistic fanboy?
As others said, beating Brook >> beating Barrera Brook was a legit top 5 (actually top 3 IMO) WW, Barrera was barely top 10 or so before the fight.
Bivol has beaten a 36 year old fringe contender who has been down in his last 5 fights and lost all 12 rounds to Andre Ward when he was younge. Lets get real.
Yeah. Barrera is a solid mid level contender type in his weight class. Brook was probably the top guy in his, until Spence came.