Tolbert probably was blocking just fine until the guy grabbed his facemask and started twisting his head.. That sorta thing tends to lessen one's effectiveness. Besides if you pancake a fool these days they will throw up their hands and some idiot ref will throw a flag. These guys really have to walk a tightrope these days I swear.
For those who have never played this game or haven't played this game in years try this out in your back yard. You don't need a helmet or face mask to simulate the situation.
Stand opposite to a family member, even a smaller one, and in the first simulation block them one on one while they are contacting only your chest or shoulders.
For the second simulation let them put their hands on your face, but get extension on your head so your neck is craned backwards. The severity of the angle you can allow should be on the multiple pics posted on this website and the internet of how far Tolbert's head was snapped back.
Now see if you can block or hold them from pushing you backwards or literally steering you left and right in your backyard. With their hands right on your face.
All this discussion of blocking into the returner is pointless becasue the hands to the face represents a significant physical advantage that caused the muffed punt and the ensuring loss of posession and the 7 point swing.
Everything else is a red herring in my mind, and focus on the wrong thing. A serious penalty that is typically called regularily in the league, and was called on one of our players earlier in the game so we know the refs are capable of calling it.