The end zone shot teaches the game differently than any white board drawing.
On the board, an Over and Under front can look clean and balanced. On game film, the spacing tells the truth. The shade, the 3-technique, the linebacker location, the surface strength, and the field/boundary leverage all become part of the picture.
That is why quarterbacks have to study defensive structure from the end zone view. The on-field perspective is compressed, bodies are moving, and the defense rarely presents itself like a static drawing.
Front identification is not memorization. It is training the eyes to recognize structure in real football spacing. Once the quarterback sees the front clearly, protection, run checks, access throws, and pressure indicators all become easier to organize.