Pretty extension ".pretty" is missing / Clone with download_pretty_libs.py from kicad-library-utils fail

These footprints seem to be a little off. The datasheet at https://eshop.wago.com/JPBC/0_5StartPage.jsp?zone=6 suggests that the pin spacing is nominally 5mm. However the description says "Set to metric or inch pin spacing by compressing PCB terminal strips or pulling them apart" which is impossible to capture in a single footprint.

The actual footprint has 5.08 mm spacing vertically, then alternates 5.08mm and 4.953 horizontally, which seems weird. Is that intentional?

The vertical error doesn't matter, but over several pins the horizontal error will accumulate. It seems there should be separate footprints for a nominal 5mm, and 5.08mm pitch.

Were these generated by script? I searched but didn't find one.