Why does the storage size unit of measure have to do with addressing? That drive addressing uses the LBA-48 (bit) addressing has nothing to do with the fact the

Why does the storage size unit of measure have to do with addressing? That drive addressing uses the LBA-48 (bit) addressing has nothing to do with the fact the minimum addressible unit size, the physical sector is a base-2 value, i.e. 512 bytes or 4096 bytes. Still seems the storage unit size should be IEC based, not SI.