I think more than the dutch it was irresponsibility of the 12 passengers to behave in such a manner on an foreign airline where already restrictions are in place. Its good that they were Indians that they were released immediately, if they were any other nationals, they would have been detained for a long time.
Its time to adhere to policies and guidelines laid down by the airlines and no one should be allowed to disobey them. In this case I don't think there was a racial profile as all the passengers were allowed in the aircraft after mandatory checks and if they had behaved in a responsible manner like other passengers, they would not have been subjected to this torture.
So all in all, passengers especially from the Asian sub-continent follow the rules laid down by the airlines and avoid unnecessary embarassment to yourself and to your respective countries.