Sure, this kind of display has its own use cases, as the article describes. But those are pretty niche.
But I want one. I am normally a form of function guy, my entire setup looks cobbled together but is comfortable and speedy... But man I wish I could live in the future and at my age I am ready for playing pretend with a laptop like that.
Transparent displays make sense where you need to present information in a view of the real world, ie a HUD.
They make absolutely jack shit sense everywhere else. You've got less contrast, and even worse, the contrast is variable across the screen. It could even be moving. It could be exceptionally bad - this screen would be unreadable if, say, a beam of sunlight were striking the floor that is in the background of the display.
The only reason we think transparent displays are "cool" is because scifi authors, TV show writers, and hollywood are fucking obsessed with them. In The Expanse everyone has a transparent phone and my first thought was "how the fuck are you supposed to see anything on that screen!?"
I doubt any company has done usability studies on the damn things. They'll get as far as prototypes like these, people will try to use them, quickly figure out they're complete shit, and all the transparent-specific R&D will have been wasted unless it can be pivoted into HUD tech, but HUDs can't be made like this because the focal length is wrong.
Products like these are definitely not supposed to sell well and Lenovo doesn't expect it to. What it does is deliver a "wow" factor. This is effectively advertising.