It's a legal block. If it weren't then every time someone goes to block you just turn around and draw a penalty. Just because he goes fetal doesn't mean he can't be blocked.I see your point on one and two but 3 I dont understand? "You cant fall down and get a penalty"? A 300 pound man running at you full steam and drives his shoulder pad in your back isnt a penalty? You cant block guys in the back.
You are right about the illegal man downfield. On the Eagles board they said the LOS is where the guys foot is in the middle of the picture so you are right and Im wrong.
And Im not really calling that a pancake. A 325 pound guy barreling down fiel like a run away frieght train and drives his shoulder pad into a 190 pound mans back isnt a pancake.