Don't understand what? I don't understand what you're talking about or what point you are trying to make.
There are 4 questions at play here.
- Is there a foul committed on the goalkeeper? No, it's a fair goal.
- Was De Gea justified to be rolling around like he got shot? No, what happened to him didn't require him to go in the fetal position, realistically he could've pushed through.
- Who is at blame for the goal, since no foul was committed? De Gea, since he didn't need to react as he did.
- Are Arsenal players cnuts? Yes, but not because they scored here.
I'm not saying it doesn't hurt, I'm not saying Fred didn't step on him. I'm saying the goal was perfectly legit, Arsenal did nothing wrong or unsportsmanlike to score it, the pain wasn't sufficient to cause De gea to drop like that because almost nothing is, therefore he's at fault for the goal.