But as I've noted, recently the health ministry has started asking families to register any deceased relatives who did not get registered in hospitals for whatever reason. They do some level of cross-checking against their citizen ID.
The demographics of the 2,367 who have been counted by this separate registration form are also wildly different from those that died in hospitals.
While 37% of the MoH casualties are military age males, over 56% of those listed on the forms are males between 18-65.
That is a significant difference.
This may indicate that Hamas has not been sending its dead fighters to hospitals at all, and just bury them (or leave them under collapsed tunnels.) Their relatives want them to be counted.
I have no evidence of this right now, but the fact that three data sets show such huge differences in the demographics of those killed makes it appear that none of them are truly accurate samples of the numbers of civilians killed in Gaza.