You're missing the point.
He doesn't have to be able to beat them in order to be dangerous. He just poses too much of a threat that isn't worth the risk yet. That's why I said he's about one more victory away from a big or semi big fight.
Berto may be defensively challenged and may employ some of the worst gameplans to enter a ring....but, He still hits hard as fukk and he's still quick and game. Dude always manages to land a good shot on you no matter who you are. Berto is definitely the underdog against cats like Thurman, Broner, Khan, Brook, but the chances of him hurting one of those guys is all too possible and how many do you think would be able to gut it out afterwards. Broner is getting slapped around by Maidana who can legit punch, but Thurman nor Brook has fought anybody that can crack like Chino or Berto. Berto has a chance against them too. I mean you got Collazo fighting Thurman in Tampa. If Berto was some non threat, they could have made Thurman/Berto battle of FL..similar to how they doing Broner/Porter. That's definitely a bigger fight than Thurman/Collazo. At least Berto coming off a win.
Hell, when you really look at it...Berto is wayyyy to dangerous especially when you factor how bad Khan and the Ghost looked against obvious cherry picks. I had both them losing and getting their asses kicked. It's not out of the question for Berto beat any of those nikkas.
Berto would definitely beat Ortiz at this point. Ghost is a toss up, but Guerrero is going life and death against career mode nikkas with 4 Ko's
Khan is getting rocked and made to run wind sprints from a nikka with 8 Ko's.
Berto is definitely a dangerous fight for Khan. shyt.. Yeah Berto was losing to Lopez, but hell Lopez would prolly KO Khan or drop him at this point too. Dude's chin ain't shyt at 147lbs.