It’s an interesting line of research, but unless they can completely remove all visual traces of grain, etc, so that it’s very clear, it’s not going to be a replacement for glass in either screens or windows. And I’m skeptical that’s possible.
It would also be useful for blinds. My doggie is a bit of a little jerk and wrecked mine trying to look outside while they were closed. Wood blinds would likely be a lot more resilient
Honestly, I'd take a woody window to replace the clear glass overlooking the scenic parking lot outside literally any of the apartments I've ever lived in.