Using cartopy to project geostationary data points onto a regular grid

I'm trying to use Cartopy to project GOES satellite imagery data onto a regular grid across the USA. I'm doing something wrong with my translation from GOES to grid at the end of this colab workbook. I'm doing this:

geos.transform_point(us_bbox[0][0] + x, us_bbox[0][1] + y, ccrs.PlateCarree()) / sat_h

As you can see from the image at the end, it isn't projecting onto the grid and is getting distorted somehow.

Any help would be greatly appreciated.

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