New Zealand have never been beyond the group stage in four previous appearances at the tournament, and while Tuesday's defeat makes reaching the knockout rounds more difficult Sermanni remained optimistic.
"We had a game plan and the players adhered to that magnificently. Their effort, courage and discipline was first class," he told reporters.
"The players will be absolutely devastated but we're a resilient group and I'm pretty confident we'll bounce back.
"Before the tournament started we said it was a three-game tournament. We're only a third of the way through."
While Canada, New Zealand's next opponents, are three spots higher than the eighth-ranked Dutch in the FIFA world rankings, Sermanni said they would present a different challenge than the Netherlands, not necessarily a more difficult one.
"I think technically the Dutch are the best team in the group, their front five are among the best in the world," said the 64-year-old Scotsman, who has also coached the Australian and U.S. women's sides.
"Canada give us a blend. They give us some real quality players but there's a more organised robustness about Canada, so they give us that slightly different challenge."
New Zealand face Canada on Saturday in Grenoble.
(Writing by Peter Rutherford in Seoul; Editing by Greg Stutchbury)
