Portability and cloud computing are king. I can code on the toilet, in a car, in bed, at a coffee shop.. anywhere. If I need to run an intensive AI workflow I can spin up some Google/Microsoft compute and pay pennies for it.

I did watch that video, and he makes great content, and I AGREE with him. But laptops are amazing. My laptop is also more powerful than I need 95% of the time anyways... I can also dock it for a more traditional setup (although with the same thermal limitations, etc)