Advocaat did include him on the bench, and brought him on for the final 17 minutes of the game.
And the coach is convinced the former Manchester City and England winger can still have a big impact on the club's fight to stay in the Premier League.
"He (Johnson) came in on Wednesday and I spoke with him," he said.
"Life goes on.
"He did well, because he is a very good player.
"I was happy that I could bring him in. It's good to know he will be here for the derby game against Newcastle (Sunderland's next match)."