This is deja vu, except instead of ChatGPT to edit photos it was instagram a decade ago.

Reproducing a certain style of image has been a regular fad since profile pictures became a thing sometime last century.

I was not meaning to suggest that large language & diffusion models are fads.

(I do think their capabilities are poorly understood and/or over-estimated by non-technical and some technical people alike, but that invites a more nuanced discussion.)

While I'm sure your wife is getting good value out of the system, whether it's a better fit for purpose, produces a better quality, or provides a more satisfying workflow -- than say a decent free photo editor -- or whether other tools were tried but determined to be too limited or difficult, etc -- only you or her could say. It does feel like a small sample set, though.