The Africans were comfortably beaten by the hosts in Brasilia as they finished their Group A campaign with no points.
"You've got to give to credit to Brazil, as they managed to create a lot of chances thanks to the quality they have. For that reason I'd say they deserved the win," Finke told FIFA.com.
"Now's the moment to take some time out and analyse the reasons behind the campaign we've had."
Cameroon have got beyond the group stage just once in seven World Cup appearances.