The 78-year-old Dutchman said his players were not expecting such a result but acknowledged his team gave up easy goals in the Caribbean nation's first appearance at a World Cup tournament.
"We need to turn this into a beautiful tournament," Advocaat said. "We can have a surprise in the second and third match. In the end we will be glad we were part of the biggest football tournament in the world."
Germany's Felix Nmecha netted the tournament's fastest goal and the four-time world champions kept scoring but Curacao gave their fans something to cheer when Livano Comenencia's deflected shot beat goalkeeper Manuel Neuer to level the match at 1-1.
In the end, though, Germany proved too much to handle - something Advocaat said his players had nothing to be ashamed about.
"We had expected to do more against Germany but we couldn't," he added. "They were very very strong and we conceded some easy goals.
"Players know if they lose they shouldn't be downcast. This is not a disgrace."
Advocaat also praised the travelling supporters who roared their team on even as the scoreline against them kept growing.
He also said he had to step back into the dugout when the national anthem started because the moment became too emotional for him.
"This is related to the joy of the people in Curacao," he said. "This is when the emotions come to the surface. The joy of the people is fantastic."