Yeah the height gap is good. And as said before, for a lot of us it's definitely the fact that they canonically are raising a child together. That's adorable.
The thing is that science baby isn't a tag for any baby made with science, it's for babies with two female biological parents.
And yes, we have a tag for adopted babies.
^that's a bit of a stretch given Saria's rather estranged status (mainly thanks to hostility of unclear motivation on Silence's part) in the narrative present...