The internet seems far from the end-all and be-all of the means of production to me.

The information age is based on the immaterial, but the material inevitably continues to exist and have dominant influence over our lives. The computers still have to be manufactured, the energy is still squabbled over, and industry is still alive and well.

Moreover the internet doesn't seem to me so widely available as portrayed.

A quick search shows that internet penetration in Africa was less than 50% in Q3 of 2020. That's more than half of Africa, which is just under a fifth of the world population, without internet access. The whole world total was just under 2/3, which is a far cry from almost anyone on earth. That or we have very disparate definitions of 'almost'.

For what it's worth I got my stats here.