There is no driver on this earth that likes a restricted plate race. Not even the late great Dale Sr. They have said for years we are going to get killed with the side by side racing. But the race got boring and the speeds got way out of hand so NASCAR said this way was safer.
Carl Edwards was to blame for his own wreck. His spotter screwed up and did not tell him that Brad had ducked under him. If Brad would have avoided the wreck he would have gone under the yellow line and put back to the last position on the lead lap.
So here is the reason for it.
Restrictor plates are used at Daytona and Talladega to combat the high speeds at NASCAR's two fastest tracks. The plates typically keep the field bunched tightly together, and fans usually see cars racing three- or four-wide. All it takes is one mistake to lead to massive pileups dubbed the Big One.
Hope that helps
Oh yeah NASCAR never blames NASCAR for mistakes they make. They blame it on the drivers then change the rules the next week one hundred times a day.
Cant dip below the Yellow line at Daytona either. The track is flatter down there and it will cause you to fly up the banking when trying to get back on the banking
Explains why the rules where changed.
NASCAR.COM - Edwards' last-lap crash similar to Allison's in '87 - Apr 27, 2009
But Bobby's car did the same thing Edwards did