They are essential for a complete picture. Didn't you ever hear about paint by numbers?
Sure, paint by the number is great. Now take the numbers you've gotten from both the IDF and the GMH, and tell me which colors I'm supposed to paint for the following categories:
Male fighters killed (over 18 and under whatever "elderly" means)
Female fighters killed (over 18 and under whatever "elderly" means)
Male fighters killed (under 18 and over whatever "elderly" means)
Female fighters killed (under 18 and over whatever "elderly" means)
Male civilians killed by IDF (over 18 and under whatever "elderly" means)
Female civilians killed by IDF (over 18 and under whatever "elderly" means)
Male civilians killed by Hamas, intentionally or by accident (over 18 and under whatever "elderly" means)
Female civilians killed by Hamas, intentionally or by accident (over 18 and under whatever "elderly" means)
Minor civilians killed by IDF
Minor civilians killed by Hamas, intentionally or by accident
Elderly (whatever that means) civilians killed by IDF
Elderly (whatever that means) civilians killed by Hamas, intentionally or by accident
Number of naturally occurring deaths from all the above demographics which are included in GMH numbers