Interesting direction we're going here!
I've ridden several bikes with BIG touring screens (talking about BIG Barn Door style screens now)

Ridden Gold Wings, big Moto Guzzi, to all sorts of BMW's; from old air heads, K bikes to latest RT's and GS's.

Most are fairly quiet and it can be nice sitting in a nice cocoon of still air on a cold day.

But ... In mostly WARM California and Mexico, where I ride, these cocoons of still air are not always a good thing. In the heat ... AIR FLOW is good.

The other big gripe we hear about wind screens is trying to ride off road whilst looking through a screen. I've done it plenty and hate it!

First did this on a friends R100GS in Baja. He had fallen, had a minor concussion. So I was conscripted to ride bike back to the highway, load into "sag wagon".

That GS was well set up, had good, fresh knobbies mounted, so it handled Baja's deep sand tracks fairly well (for a GS!) ... but I had a HELL OF A TIME riding as I was forced to look through that tall wind screen.

I could not concentrate well, affected vision, depth perception and mostly confidence. Not good. I only had to ride it for less than an hour, so I guess after a day or so I could have adapted. Overall, very un comfortable for me.

Later rode a friends XR650L through Mojave Desert. His bike had moderate screen but it really made vital terrain reading/line choice nearly impossible riding at a good pace. I hated it and crashed it. (minor)

Since then ridden a few other Dual sport bikes with screens off road ... I am NOT a fan.

The last point is the danger of having your throat cut it you bash into the edge of the screen in a fall neck first.
Unlikely, but somehow worries me.