DY taking lessons and learning mussar is always a good thing.
but this idea of needing “reasons” for every tragedy, and searching for “deep” understandings. Makes me uncomfortable. Moshe Rabeinu couldnt understand Tzadik Vera Lo. If only he had access to Rabbi Wallerstien’s Zohar he could just open it and find out!
The one certain thing to take from this tragedy is to check smoke detectors. period. If you are inspired to improve in other ways as well. Ma Toiv uma naim