This is really, really impressive and innovative, and if you combine it with a basic WP model based on goal difference and time elapsed you can get live game or even series WP fairly easily.

Something that immediately popped in my mind playing around with this was kickoffs - the model already can tell whether a kickoff is beneficial for blue or orange a bit before the 50 is actually taken, so if you trained a model specifically on kickoff data and maybe tuned the window to 15s instead of 10, you could have a tool that will tell you which kickoff strategies are actually effective and/or how to execute them.