The original post and articles make interesting points about the changing nature of the economy and technology, but they don't address wider-ranging impacts:
- monopolistic manipulation of markets and rent-seeking,
- unaccountability, except maybe to those precious (few) "shareholders".
- Influence on public policy, either through powerful lobbying, propaganda outlets (i.e., think-tanks, "foundations") and financial support of sympathetic political candidates.
Moreover, the articles authors question the need for breakup, but yet offer only a few hazy bromide such as "new corporate governance rules", "new tax policy" or "decentralized transactions based on the blockchain technology" (yeah, right ...).
Breaking up large corporations is still a blunt and messy option, but I still it's the best one to address the problems discussed here.