I heard the hovering helicopter too (it was yesterday morning IIRC); it was around until at least 8am. I was so surprised by the continual sound (rather than passing-by) that I even googled how long a helicopter can hover for on a full tank.
Some of the main points are weak and don't really apply to differentiating Lift specifically. For example, the fact that Lift is Scala-based doesn't make it any different than Symfony is PHP-based or Spring MVC is Java-based. Subjective, but I definitely understand that that this is an opinionated view (rather than a objective "Lift has Feature X" viewpoint).
Similarly, what server-side framework that's in wide usage nowadays doesn't have the ability to have some form of generated/dynamic JS wiring? I'd say that's table stakes nowadays, not something to callout by any means.