How many angels does God need...

I am sitting here writing with a very very heavy heart. A fellow MoM(mother of Multiples) lost one of her children today. Brooke had her triplets at 25 weeks and for the past 50+ days. the babies have been overcoming hurdle after hurdle until one thing stopped everyone in their tracks. Sweet little Annaleigh, who was just taken off the nasal cannula and was breathing room air, stopped gaining weight. her belly was swollen and was vomiting repeatly. A surgery consult showed that the culprit was NEC.
NEC stands for Necrotizing Enterolitis and it is primarily seen in micropreemies. Bacteria destroys the bowels from the inside out. It is devestating. Surgery revealed that Annaleigh's bowels were all destroyed and the only chance for recovery was a bowel transplant, which was slim to none.
In the span of a few days, Brooke and her husband prepared to say goodbye to Annaleigh. I cant even pretend to understand how they felt when they received that news.
At 4:30 today, Annaleigh stopped fighting. They were able to get a family picture with all three babies. My heart is broken for this family. I cant stop crying and staring at my own two miracles.

Being active in the online multiples community means I have seen my fair share of sad stories and I just want to know how many more angels does God need? I think he has enough and I am asking him now to just leave the babies alone. Babies belong on earth where they can be cuddled and loved by their families. Can we make a deal God?
Life is just so unfair. It is just so hard to wrap my head around and while I think I am a religious oerson, I cant explain this away using faith. I just cant. Some might say"well this is just one of life's mysteries, we dont know why God does this", at this point I am not buying that.
I know this is rambling, but like I told my husband, I am sick of God taking the babies away...