One of the issue is laptops aren't a growth angle to Apple. For instance the efforts they made towards the CPU and processing architecture wouldn't have made sense without the other products benefiting from it.
We've seen that with the touchbar: it got a first release, and basically no improvements, no bug fixes, no better support from there. A laptop only feature gets no love from today's Apple.
Even the iPad saw little to no progress in recent years, outside of sharing specs with the mac.
I posit we'd see a foldable/bendable phone from Apple before we ever see something significant form factor change in laptops.
The touchbar got shit on and it was probably expensive at the same time. Worthy innovation perhaps, but the customers didn't value it. I think that was the reason it faded out. I actually used it for audio adjustments, but I didn't need it.
We've seen that with the touchbar: it got a first release, and basically no improvements, no bug fixes, no better support from there. A laptop only feature gets no love from today's Apple.
Even the iPad saw little to no progress in recent years, outside of sharing specs with the mac.
I posit we'd see a foldable/bendable phone from Apple before we ever see something significant form factor change in laptops.