The man who died was a tiny fragment, yes, but death is separation, not cessation, ultimately. The "dead" go to Hell or Heaven, consciously, they don't "cease being". Jesus tasted death for all, meaning the eternal, triune godhead was ripped apart. Jesus anticipated this suffering, and perspired blood.
Death is separation and the triune God separated for the crucifixion, Jesus condemned, God cannot have part with uncleanness, the Bible says Jesus became imperfect/sinful/unclean for us that we would become perfect/sinless/clean. Jesus despised the shame of the cross, became a curse word (per prophecy where people would curse the Messiah instead of the Father, using "Jesus Christ" as invective), etc.
Finally as I wrote, I see where a person dying is important to us but also a mote in the universe, but I do not relish a beating, scourging and crucifixion. Trivializing it seems wrong. How can skeptics keep the double standard of "no one innocent, like a child, should ever suffer, but innocent Christ dying for me is not really important suffering"?