Yep. Agreed. He came on as a sub on Thursday and it was his quick free kick, a killer ball if you like, that set up England's only goal.
(2.20" in, in these highlights)
https://youtu.be/WLlvJKl6OUk
He wasn't. He was on the subs bench for the first 2 games of the finals and was in the first 11 for the final group game against Italy.
http://www.uefa.com/under21/season=2015/matches/round=2000408/match=2015378/index.html