My expectations are hardly unreasonable, wanting a brand new 3000 dollar laptop to be at least close to as durable as the 8 year old model is "out of line with reality" to you? I'm not sure if you're joking or you simply haven't touched other mid to high end laptops lately because comparing it to any random 1200 laptop at best buy, this screen is remarkably fragile.
Yes, it is totally unreasonable when one is a semi ruggedized plastic bodied computer made to be abused by children in school and the other is a state of the art ultra thin workstation. And again, there's no proof that this is fragile. It's your idle conjecture based on the flexibility you assume shouldn't be there. Effectively what it comes down to is, if you don't like it, don't buy it and get something that meets your standards. Until proven otherwise, there's nothing wrong with this machine.
Or maybe something was broken on the machine you saw. Have you checked any others?