This article popped up a few months ago too. The big problem at the time was price. PCs, including luggable ones, were pretty pricey by today's standards. The early laptops were even more do. You're probably talking $4K-$5K for a configured system in 1985 dollars.

Early LCD screens were also pretty bad. Darker grey or grey. Or Plasma screens that cost more and had to run off AC.

It's easy to make fun of predictions like these. More interesting to consider the reasons they were wrong.