But the AI should not have learned to apply a Gaussian deconvolution kernel. If anything it should be applying a lens-based bokeh kernel instead. A true lens blur does not behave like a Gaussian blur.
You certainly wouldn't be able to recover any detail this way (in fact, deconvoluting Gauss after taking a photo of the picture displayed on a computer screen won't give you any kind of sensible results either - try it yourself).