Wow! The article was interesting, but looking at the Grid+ project is amazing! They are going to start a blockchain based electrical utility, create a secure hardware device to interface Ethereum with IoT. Establish a USD backed stable crypto token, and establish what will likely be one of the largest off-chain liquidity pools using state channels! Mind blown.
The author seems competent and honest. It is nice to see that the public Ethereum network was chosen because it has features that are needed and not available in other networks. It's going to take a while to get through their white paper, it looks very detailed.
This is an interesting article on private vs. public blockchains. I personally have never really seen the value in using extremely inefficient distributed ledgers in lieu of a database for permissioned settings.