Blocked Punt

I'm curious, did the Dolphins see something in the Steelers formation that told them they could have success in blocking a punt? I haven't seen the Dolphins play this year so I am not certain if this is their usual M.O. or not. Was it a matter of thinking the Steelers were ripe for a block? A tell on McBriar? Or perhaps a lack of respect for Brown as a returner?
I know the field was a little slick especially in the early part of the game, but it just seemed like they knew something. Obviously they were right since they did manage to block one.
Just curious if on the audio of the game they made any comments as to why Miami kept trying to block.

 

I don't know for sure, unfortunately I was having lot of ICE/ISP problems during the game.

I did see the punt that was blocked and it appeared that they came right past/thru Will Johnson who was playing near the center of the line, at least that's what I thought I heard. My question is was it indeed Will Johnson that they came thru on and I'm curious why or how long he has been playing on the center part of the line during punts??

I'm not trying to blame Johnson, but more curious as to if he normally plays towards the center of the line on punts. Again, I was having ISP problems was watching the game in bits and pieces mode, so maybe I thought I saw or heard something wrong.

 

It's seems like we've been trying to fix the special teams for 10 years now. Just like the offensive line.