When I look at the photo of Jeb and his wife, it becomes rather clear.
The computer might come up with things for Jeb, but a facsimile of a crown? That’s something only a human would grasp.
Look at Jeb’s wife. That’s a human reaction IMO.
Look at Jindal. It’s a particlarly vile morphing due to him being more Conservative than others. They have to make him look like a beast.
Note that Jeb isn’t morphed in the same way. They see him as a moderate. He doesn’t warrant the full treatment like Jindal does.
It seems apearant to me that at least some of this is the reflection of human perceptions and emotions.
I’d think this is human driven. They give it two images and tell it to morph.