Louis did a nice video on the older keyboard/trackpad vs the newer ones, which I agree with. Modern keyboards actually aren't bad, but the trackpads are terrible. The entire design of having left and right click as just one big flat button causes so many issues.
Ideally, there would still be buttons to allow both types of control though.
An additional benefit over hard buttons is that applications can use it for additional feedback. E.g. OmniGraffle provides subtle haptic feedback via the trackpad when objects align, which I find extremely handy for quickly aligning objects.
It seems that most people but developers like and actually use number pads. I think I touched it ten times in 3 years, included checking that it worked.
"Last laptop ever made with excellent keyboard design? (Lenovo Thinkpad T520, fr 2011)" - no numpad.
The IBM Model M keyboard is just raised as the prototypical desktop keyboard design, and the numpad there is commented as "Separate number pad possible on large keyboard without disturbing main keyboard" - which is hard to argue against.
A lot of heavy Excel users would disagree.
You might make the argument that using Excel is like being a data entry clerk, but having actually having had a job as a data entry clerk in the 80s, I can tell you it is not the same thing.
But, the most glaring problem is the idealized keyboard for a laptop being one with a 10 key area. When you sit down at a desktop you can position the external keyboard to center the G/H keys in the middle of your monitor and type comfortably. If you shift the G/H to the left it makes you move your arms to the left for 99.9999% of your typing - unless you still do 10-key data entry for some reason.
The second overall problem I have is the idea that you need dozens of keys that are not essential to the function of your ability to TYPE on the laptop. Sure, you could have a button to disable the wireless on your laptop - but this is exactly the kind of key that SHOULDN'T be on a laptop. I have had to "fix" so many laptops by re-pressing the wireless toggle key that I have been tempted to physically break the key.
I'm only ranting here just incase any keyboard designers think this article has any merit and tries to design a laptop-keyboard-from-hell like this.
Just don't.