Have you ever had to debug something before? Figuring out which file caused the crash is a manual process when you don't have control of all the things in the environment and the environment is sufficiently complex. Mod A may have caused a memory leak because of a unique way it interacted with Mod B in this very specific scenario that it is damn near impossible to replicate, but the game didn't actually crash until mod C had a need for resources to render some stuff while the player was in a cell that was altered by mod D. Now which mod caused the crash and how did you determine that in an automated fashion with a moderate level of accuracy?

Sure you could just output a raw log dump of the last stuff that was being touched prior to the crash, but that isn't necessarily going to tell you which mod caused the crash.