Too often, that's the level of instruction these days. There have been many perfectly avoidable crashes due simply to ignorance of the physics of carb ice. An AOPA study found that carb ice was the single biggest cause or suspected cause of power failure. Now I can't find that link. Lost it.
Application of carb heat for an unexplained loss of power should be pretty much automatic.
My carb ice "event" included a completely frozen throttle.https://www.aopa.org/news-and-media...ing-magazine/the-case-of-the-mysterious-lever
This is a pretty good article on carb ice. One thing he gets a little wrong about carb ice being more likely at low power settings is his assertion that less heat is available at that time. The real cause is the throttle plate, being mostly closed, represents a major restriction to the airflow and acts like a venturi that makes a much bigger pressure drop than the main venturi does, causing a large temperature drop that will cause ice to form on the plate and walls adjacent to it.