It was not a nerf. He is strong. He just did an immense training for 3 hours and faught against 3 meter lions with no gadgets and guns. He managed to fight an army in the simulation because he couldn't get tired in there. Dont worry he will get the serum that is being developed to regain that stamina.
About emily, it was my first time trying something like that, I wont do it again if you guys didnt liked it. I am sorry for that.