For example, problematization isn't simply "examining problems" but really a concept in which one basically challenges what is considered "common knowledge" or "common sense." Problematization as defined by Wikipedia.
As for historicization, it seems that it was originally a tool developed by Bertolt Brecht for actors in which they must interpret their actions as a product of historical development. So, it's not really a "historical perspective" because in order to have that perspective, it must have occurred already, whereas historicization sounds like you have to make something historical when it's not. I could be wrong though. These are the first times I came across those two terms.