Shining: Gnnn… how could she ever lose to Chrysalis with THIS amount of strength?!
Cadance: Auntie is not a monster! She only does this to her loved ones! Argh…
I could absolutely see Celestia as the literal mom-horse who lives through the families of her loved ones when she can’t decide on who to start one of her own with, but she sees the adorable children she could grandma over. I’m sure she just wishes Flurry was her own, but that won’t stop her from acting as if she is. Same would go for when Twilight procreates, and especially Luna.