I believe you are looking at this as merely a series of transient technical problems.
I see something bigger. I see an economic and governance platform. There are certain types of things that are natural monopolies. I believe sooner or later all this blockchain chatter will resolve itself into a few dominant blockchains. Not because that is the most efficient or optimal solution, but because of basic human behavior. This has happened on PCs, on servers, on mobile phone, etc.
A few billion years ago a single strand of DNA started out with nothing other than adaptability. With nothing other than trial and error it generated our current atmosphere and took dominion over the surface of earth.
There are practical problems that we have not yet even encountered with blockchains. A successful blockchain takes a monopoly position, with trillions of dollars of investment, may have to last of hundreds of years, maybe longer, while adapting to who knows what.
You need real governance mechanisms. And adaptable ones that can handle messy situations like the DAO, and psychopathic behaviors, and bad faith state interference. These are states that have the ability to exercise real police powers.
Tezos governance mechanisms may not be good enough, but they are the best that I am aware of.
Maybe I need to sit down and write a Medium article on this subject. We have over 2,000 years of human experimentation with governance systems and I do not think any blockchain architect to date has done an adequate job of informing themselves of the lessons and solutions of history as they build their blockchain ecosystems.
Just one person’s opinion.