I don't think you see the full extent of the paradigm shift the author hints at (perhaps the author doesn't, either).
A 51% attack is one thing, sure, if that's your concern it gets more complicated but certainly not impossible to tell that, for example, there is widespread inability to get transactions through. In the worst case, a nuke (spinoff to protocol with a different mining algo, retaining the ledger) can be made to be very easy to do. No proof of miner malfeasance is needed, mere suspicion will do if it is easy enough to go through the spinoff process. If it needs to be a regular thing, it can soon be done without the user even noticing by having the wallet software be advanced enough. Let that sink in. Investors always hold the final card. Miners make investors jumpy at their own peril, no matter what the miners' motivations are. ...
Now if you'll say everyday users/sheep will just go with the flow, sure, they may and they will have their transactions censored, then, but with wallet software that makes it a snap - even unnoticeable, default - to switch to spinoffs at will so that the ledger is always maintained, the friction is reduced to practically zero. At worst we are back to a situation where people "don't realize they should be using Bitcoin," but this time it's little more than a single click on an interface to fix that.
Note made to myself. Never contract this guy to do any design work. He is entirely out-of-touch with reality.
Certainly there are tradeoffs, as investors know not to piss miners off too much or else alienate their hashing security team, but if this is just going to be another "Bitcoin is broken because 51% attack" argument where you are saying
your system fixes this, well, that's cool but only once you show it. It doesn't mean anything to anyone just saying you have a better solution. We have no way of knowing you're right or wrong, and there are too many claiming the same.
Even if you remove my vaporware from the analysis, Bitcoin can not scale decentralized. So make your choice. Those pretending they can have both scaling and decentralization are lying or deluded or both.
Also Bitcoin can't scale efficiently even centralized because maximum network efforts are mitigated by centralization. A decentralized solution (which isn't vaporware) that scales could wipe Bitcoin Core's ass off the map.