It was no explantion why Warpath did not just take Cap's shield and throw it 15 miles away.
He is stronger and faster than Steve but next time you see him fight Steve he is knocked out at Caps feet all action off panel.
Just like Scott only aims for Cap's sheild and not hin legs or the ground under them.
Belive it or not I was an Avenger fan before this and the twins recanon.