If this is true than please answer these 2 questions.
What DAPPs do you see as having a practical use case and why wouldn't I use fuels given to me on a more secure PoS clone? Why spend 3 pennies or higher on DAPP cpu cycles when I am given fuel for free and than when I run out new fuel is a fraction of the cost of ethereum with its clone?
Other many concerns :
1) Vitalik organization is running out of money as he admitted himself and he will need to start dumping his large bag to pay expenses
2) You think Bitcoin has scaling problems , Ethereum's blocksize is already over 10GB and no one is using it. Even if they "sharded up" and pruned the blocksize they are going to have much larger problems because there currency isn't a currency but fuel for cpu cycles, thus a popular DAPP would both drive up the cost of cpu cycles and clog the network
3) 12 sec blocktimes is absurdly small and leads to too many orphans or forks. This is why Monero devs are increasing from 1 minute block times to 2 or more
Ok 1 practical Dapp I would see useful is a Dapp that would Hold all the elections of a country.
A way for the people to really vote in a democratic way, where you are sure you can't be cheated.
You can vote for everything, and then we would eventually not need politics.
And I could think of so many more good examples.
And why would I go for a clone, when Ethereum has the most money to build something good?
The only thing I see coming close to Ethereum is Lisk and We just have to see how that goes.
But you have a lot of concerns, and I am more positive about it.
I agree the blockchain is pretty big, I am downloading it right now and it is about 80% right now.
And it is already taking 6 hours, So that is indeed big and will only get bigger.
And they also say it is really easy for the normal people, But you still need some computer experience for this.