Packers go punt block late in 4th Quarter... And THIS ends up being the longest punt return of the season. Amazing.
No blocks are in position when Trevor Davis fields this punt
Okay, probably an apples to oranges comparison here ... but when our high school team used to practice punt coverage, we would throw together a random team of volunteers to play the role of the return team, and half the time I would be the return guy. For whatever reason, it just seemed easier to return punts when the blocking wasn't set up.
I think part of it is that you aren't forcing yourself to go one side or the other (whichever side the blocking is set-up for), so you have the entire field to work with. And a good portion of it is that you can see the opponents coming at you a lot better and can make better decisions on where the holes will be. But I think the biggest reason is that once you get past that initial tackler or two and start getting up-field, you run into a bunch of trailing teammates that can throw blocks for you.
I remember one time I took a punt, quickly side-stepped the first two tacklers and took it right up the middle for a would-be touchdown. The first two guys that missed left a gap in the middle, and once I hit that hole the guys coming back to block scraped off all the other cover guys trying to play catch-up. The coach blew the play dead before I could cross the 50 though and completely laid into the starters.