In both cases it is a statement made by someone who doesn't understand what they are talking about. (EDIT) to avoid being needlessly trite: because if someone d

In both cases it is a statement made by someone who doesn't understand what they are talking about. (EDIT) to avoid being needlessly trite: because if someone does know what they are talking about then they would say it is trivial. "It should be trivial" means you are just making stuff up.