Ferguson never had any doubts about the youngster's quality and potential.
"That's the journalism," Sir Alex told MUTV. "It's fickle.
"I wouldn't worry about that [any over-the-top praise]. It didn't worry us before so why should we worry after it?
"The boy has shown that he has got terrific ability. He's got to adapt to the English game and we know there will still be some occasions where he is going to find it difficult in terms of the physical part of it. But he's getting stronger and, next year, he'll be better.
"He had a fantastic night as he made three exceptional saves. Their keeper, Diego Lopez, made two, too, so it was a night when both goalkeepers excelled on the big occasion."