Very cool. For anyone interested in this kind of tactical analysis, another (though non-computational) one I've enjoyed is http://www.zonalmarking.net/.
In the same vein, but with a more statistical oriented take on european football you can check https://www.alfadata.xyz/blog.
And here is an interview of the founder about his experience building the service and data infrastructure behind it http://datapeek.org/interview/alfadata
And here is an interview of the founder about his experience building the service and data infrastructure behind it http://datapeek.org/interview/alfadata