https://youtu.be/Qct6LKbneKQ?t=2005
the whole video is worth watching as well (and there are several videos on the channel focusing on the UI of notation apps, worth watching for anyone who does UI but isn't interested in music production as well)
OP doesn't show any multi-stave (i.e. "full score") example at all -- if the system could do that, it would likely have been part of the demo.
This is extremely cool technology, but it's clear that more polish would be needed before it's ready for general use.